Subaru IMPREZA 2001 Service Manual
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Subaru IMPREZA 2001 Service Manual

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2001 IMPREZA SERVICE MANUAL
CHASSIS SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD.
QUICK REFERENCE INDEX
FRONT SUSPENSION
REAR SUSPENSION
WHEEL AND TIRE SYSTEM
DIFFERENTIALS
TRANSFER CASE
DRIVE SHAFT SYSTEM
ABS
ABS (DIAGNOSTICS)
BRAKE
PARKING BRAKE
POWER ASSISTED SYSTEM
(POWER STEERING)
FS
RS
WT
DI
TC
DS
ABS
ABS
BR
PB
PS
G1830GE5

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  • Page 1 FRONT SUSPENSION REAR SUSPENSION WHEEL AND TIRE SYSTEM DIFFERENTIALS This service manual has been prepared to provide SUBARU service personnel TRANSFER CASE with the necessary information and data for the correct maintenance and repair of SUBARU vehicles. DRIVE SHAFT SYSTEM...

  • Page 2: Table Of Contents

    Subaru Select Monitor................18 Read Diagnostic Trouble Code ..............20 Inspection Mode..................21 Clear Memory Mode..................22 ABS Warning Light Illumination Pattern ............23 List of Diagnostics Trouble Code ..............24 Diagnostics Chart with Diagnosis Connector ..........28 Diagnostics Chart with Subaru Select Monitor..........96 General Diagnostics Table..............186...

  • Page 3: Basic Diagnostic Procedure

    BASIC DIAGNOSTIC PROCEDURE ABS (DIAGNOSTICS) 1. Basic Diagnostic Procedure A: PROCEDURE 1. WITHOUT SUBARU SELECT MONITOR CAUTION: Remove foreign matter (dust, water, etc.) from the ABSCM&H/U connector during removal and instal- lation. NOTE: • To check harness for broken wires or short circuits, shake it while holding it or the connector.
  • Page 4 For trouble code list, refer to “List of Diagnostics Diagnosis Con- Trouble Code”.<Ref. to ABS-24, WITHOUT nector.> SUBARU SELECT MONITOR, LIST, List of Di- agnostics Trouble Code.> 2)Repair trouble cause. 3)Perform the clear memory mode. <Ref. to ABS-22, WITHOUT SUBARU SELECT MONI- TOR, OPERATION, Clear Memory Mode.>...
  • Page 5 NOTE: • To check harness for broken wires or short circuits, shake it while holding it or the connector. • Check list for interview. <Ref. to ABS-26, WITH SUBARU SELECT MONITOR, LIST, List of Diagnostics Trouble Code.> Step Check CHECK PRE-INSPECTION.
  • Page 6 For trouble code list, refer to “List of Diagnostics Subaru Select Trouble Code”.<Ref. to ABS-24, WITHOUT Monitor.> SUBARU SELECT MONITOR, LIST, List of Di- agnostics Trouble Code.> 2)Repair trouble cause. 3)Perform the clear memory mode. <Ref. to ABS-19, CLEAR MEMORY MODE, OPERA- TION, Subaru Select Monitor.>...

  • Page 7: Check List For Interview

    CHECK LIST FOR INTERVIEW ABS (DIAGNOSTICS) 2. Check List for Interview A: CHECK Check the following items about the vehicle's state. 1. STATE OF ABS WARNING LIGHT ABS warning light Always comes on. Sometimes Only once Does not come on •...
  • Page 8 CHECK LIST FOR INTERVIEW ABS (DIAGNOSTICS) Behavior of vehicle a) Directional stability cannot be obtained or steering arm refuses to work when applying brakes : Yes / • When : Vehicle turns to right Vehicle turns to left Spins Others : b) Directional stability cannot be obtained or steering arm refuses to work when accelerating : Yes / •...
  • Page 9 CHECK LIST FOR INTERVIEW ABS (DIAGNOSTICS) Condition a) Brakes Deceleration : Continuous / Intermittent b) Accelerator Acceleration : Continuous / Intermittent c) Vehicle speed km/h Advancing Accelerating Reducing speed Low speed Turning Others : d) Tire inflation pressure Front RH tire : Front LH tire : Rear RH tire : Rear LH tire :...

  • Page 10: General Description

    GENERAL DESCRIPTION ABS (DIAGNOSTICS) 3. General Description B: INSPECTION Before performing diagnostics, check the following A: CAUTION items which might affect ABS problems: 1. SUPPLEMENTAL RESTRAINT SYSTEM 1. BATTERY “AIRBAG” Measure battery voltage and specific gravity of Airbag system wiring harness is routed near the electrolyte.

  • Page 11: Special Tools

    GENERAL DESCRIPTION ABS (DIAGNOSTICS) C: PREPARATION TOOL 1. SPECIAL TOOLS ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 24082AA150 CARTRIDGE Troubleshooting for electrical systems. B2M3876 22771AA030 SELECT MONITOR Troubleshooting for electrical systems. • English: 22771AA030 (Without printer) • German: 22771AA070 (Without printer) • French: 22771AA080 (Without printer) •...
  • Page 12 GENERAL DESCRIPTION ABS (DIAGNOSTICS) ABS-11...

  • Page 13: Electrical Components Location

    ELECTRICAL COMPONENTS LOCATION ABS (DIAGNOSTICS) 4. Electrical Components Location A: LOCATION BR0031 ABS control module and hydraulic Data link connector (for Subaru ABS sensor control unit (ABSCM&H/U) select monitor) Wheel cylinder Proportioning valve Transmission control module (only (10) G sensor...
  • Page 14 ELECTRICAL COMPONENTS LOCATION ABS (DIAGNOSTICS) BR0032 B4M1226B BR0056 B4M0231E BR0033 BR0057 ( 7 ) ( 8 ) BR0058 ABS-13...

  • Page 15: Control Module I/O Signal

    CONTROL MODULE I/O SIGNAL ABS (DIAGNOSTICS) 5. Control Module I/O Signal A: ELECTRICAL SPECIFICATION B4M1228A NOTE: • The terminal numbers in the ABS control module and hydraulic control unit connector are as shown in the figure. • When the connector is removed from the ABSCM&H/U, the connector switch closes the circuit between terminal No.
  • Page 16 CONTROL MODULE I/O SIGNAL ABS (DIAGNOSTICS) Input/Output signal Terminal No. Contents (+)—(−) Measured value and measuring conditions Front left wheel 9—10 Front right wheel 11—12 ABS sensor*2 0.12 — 1 V (Wheel speed sensor) (When it is 20 Hz.) Rear left wheel 7—8 Rear right wheel 14—15...
  • Page 17 CONTROL MODULE I/O SIGNAL ABS (DIAGNOSTICS) B: SCHEMATIC B4M2226 ABS control module and hydraulic Front right outlet solenoid valve (17) ABS warning light control unit (ABSCM&H/U) (10) Rear left inlet solenoid valve (18) Stop light switch ABS control module area (11) Rear left outlet solenoid valve (19)
  • Page 18 CONTROL MODULE I/O SIGNAL ABS (DIAGNOSTICS) C: WAVEFORM B4M2526A ABS-17...

  • Page 19: Subaru Select Monitor

    NOTE: • For detailed operation procedure, refer to the S2M0286 SUBARU SELECT MONITOR OPERATION MAN- 4) Connect Subaru Select Monitor to data link con- UAL. nector. • For detailed concerning diagnostic trouble (1) Data link connector located in the lower por-...
  • Page 20 4) On the «Brake Control Diagnosis» display screen, select the {Clear Memory} and press the «YES» key. 5) When the “Done” and “turn ignition switch OFF” are shown on the display screen, turn the Subaru Select Monitor and ignition switch to OFF.

  • Page 21: Read Diagnostic Trouble Code

    (Stored codes will stay in memory until they are cleared.) B4M0231E B4M0232A 2. WITH SUBARU SELECT MONITOR Refer to SUBARU SELECT MONITOR for information about how to obtain and understand trouble codes. <Ref. to ABS-18, Subaru Select Monitor.> ABS-20...

  • Page 22: Inspection Mode

    INSPECTION MODE ABS (DIAGNOSTICS) 8. Inspection Mode A: OPERATION Reproduce the condition under which the problem has occurred as much as possible. Drive the vehicle at a speed more than 40 km/h (25 MPH) for at least one minute. ABS-21...

  • Page 23: Clear Memory Mode

    After diagnostics is completed, make sure to clear memory. Make sure only start code (11) is shown after memory is cleared. 2. WITH SUBARU SELECT MONITOR Refer to SUBARU SELECT MONITOR for information about how to clear trouble codes. <Ref. to ABS-18, Subaru Select Monitor.> ABS-22...

  • Page 24: Abs Warning Light Illumination Pattern

    ABS WARNING LIGHT ILLUMINATION PATTERN ABS (DIAGNOSTICS) 10.ABS Warning Light Illumination Pattern A: INSPECTION B4M0781A 1) When the ABS warning light does not illuminate in accordance with this illumination pattern, there must be an electrical malfunction. 2) When the ABS warning light remains constantly OFF, repair the ABS warning light circuit or diagnosis cir- cuit.

  • Page 25: List Of Diagnostics Trouble Code

    LIST OF DIAGNOSTICS TROUBLE CODE ABS (DIAGNOSTICS) 11.List of Diagnostics Trouble Code A: LIST 1. WITHOUT SUBARU SELECT MONITOR Trouble Contents of diagnosis Index No. code Start code • Trouble code is shown after start code. — • Only start code is shown in normal condition.
  • Page 26 LIST OF DIAGNOSTICS TROUBLE CODE ABS (DIAGNOSTICS) Trouble Contents of diagnosis Index No. code <Ref. to ABS-58, TROUBLE CODE 31 — ABNORMAL INLET Front right inlet valve SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (FRONT RH) —, Diagnostics Chart with Diagnosis Connector.> <Ref.
  • Page 27 Chart with Subaru Select Monitor.> <Ref. to ABS-112, TROUBLE CODE 22 — FRONT RIGHT ABNOR- Front right ABS sensor Front right ABS sensor MAL ABS SENSOR SIGNAL —, Diagnostics Chart with Subaru abnormal signal abnormal signal Select Monitor.> Open or short circuit in Open or short circuit in <Ref.
  • Page 28 <Ref. to ABS-136, TROUBLE CODE 42 — POWER SUPPLY VOLT- too low too low AGE TOO LOW —, Diagnostics Chart with Subaru Select Monitor.> Power supply voltage Power supply voltage <Ref. to ABS-138, TROUBLE CODE 42 — POWER SUPPLY VOLT-...

  • Page 29: Diagnostics Chart With Diagnosis Connector

    DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) 12.Diagnostics Chart with Diagnosis Connector A: ABS WARNING LIGHT DOES NOT COME ON. DIAGNOSIS: • ABS warning light circuit is open or shorted. TROUBLE SYMPTOM: • When ignition switch is turned ON (engine OFF), ABS warning light does not come on. WIRING DIAGRAM: LHD MODEL BATTERY SBF-3...
  • Page 30 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL BATTERY SBF-3 SBF-1 IGNITION SWITCH No.13 RELAY HOLDER B225 COMBINATION METER ABS RELAY INDICATOR LIGHT DIAGNOSIS TERMINAL B264 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B264 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 8 9 10 11...
  • Page 31 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK IF OTHER WARNING LIGHTS TURN Do other warning lights turn Go to step 2. Repair combina- tion meter. <Ref. Turn ignition switch to ON (engine OFF). to IDI-19, Combi- nation Meter Assembly.>...
  • Page 32 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK BATTERY SHORT OF ABS WARN- Is the voltage less than 3 V? Go to step 8. Repair wiring har- ING LIGHT HARNESS. ness. 1)Turn ignition switch to ON. 2)Measure voltage between connector (F74) and chassis ground.
  • Page 33 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) B: ABS WARNING LIGHT DOES NOT GO OFF. DIAGNOSIS: • ABS warning light circuit is open or shorted. TROUBLE SYMPTOM: • When starting the engine and while ABS warning light is kept ON. WIRING DIAGRAM: LHD MODEL BATTERY SBF-3...
  • Page 34 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL BATTERY SBF-3 SBF-1 IGNITION SWITCH No.13 RELAY HOLDER B225 COMBINATION METER ABS RELAY INDICATOR LIGHT DIAGNOSIS TERMINAL B264 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B264 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 8 9 10 11...
  • Page 35 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INSTALLATION OF ABSCM&H/U Is ABSCM&H/U connector Go to step 2. Insert ABSCM&H/ CONNECTOR. inserted into ABSCM until the U connector into Turn ignition switch to OFF. clamp locks onto it? ABSCM&H/U until the clamp locks onto it.
  • Page 36 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK WIRING HARNESS. Is the resistance less than 0.5 Go to step 11. Repair harness. Ω? Measure resistance between connector (F74) and chassis ground. Connector & terminal (F74) No. 20 — Chassis ground: CHECK WIRING HARNESS.
  • Page 37 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) C: TROUBLE CODE DOES NOT APPEAR. DIAGNOSIS: • Diagnosis circuit is open. TROUBLE SYMPTOM: • The ABS warning light turns on or off normally but the start code cannot be read out in the diagnostic mode. WIRING DIAGRAM: LHD MODEL BATTERY SBF-3...
  • Page 38 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL BATTERY SBF-3 SBF-1 IGNITION SWITCH No.13 RELAY HOLDER B225 COMBINATION METER ABS RELAY INDICATOR LIGHT DIAGNOSIS TERMINAL B264 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B264 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 8 9 10 11...
  • Page 39 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK DIAGNOSIS TERMINAL. Is the resistance less than 0.5 Go to step 2. Repair diagnosis Ω? 1)Turn ignition switch to OFF. terminal harness. 2)Measure resistance between diagnosis ter- minals (B81) and chassis ground. Terminals Diagnosis terminal (A) —...
  • Page 40 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) D: TROUBLE CODE 21 — ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) (FRONT RH) — NOTE: For the diagnostic procedure, refer to TROUBLE CODE 27. <Ref. to ABS-40, TROUBLE CODE 27 — AB- NORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) (REAR LH) —, Diagnostics Chart with Diagnosis Connector.>...
  • Page 41 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) G: TROUBLE CODE 27 — ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) (REAR LH) — DIAGNOSIS: • Faulty ABS sensor (Broken wire, input voltage too high) • Faulty harness connector TROUBLE SYMPTOM: •...
  • Page 42 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH B200 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 8 9 10 11...
  • Page 43 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 5 6 7 27 28 29 30 31...
  • Page 44 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK ABS SENSOR. Is the resistance between 1 Go to step 2. Replace ABS sen- 1)Turn ignition switch to OFF. and 1.5 kΩ? sor. Front: <Ref. 2)Disconnect connector from ABS sensor. to ABS-14, Front 3)Measure resistance of ABS sensor connec- ABS Sensor.>...
  • Page 45 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK BATTERY SHORT OF HARNESS. Is the voltage less than 1 V? Go to step 7. Repair harness 1)Turn ignition switch to ON. between 2)Measure voltage between ABSCM&H/U con- ABSCM&H/U and nector and chassis ground.
  • Page 46 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK GROUND SHORT OF HARNESS. Is the resistance more than 1 Go to step 12. Repair harness 1)Turn ignition switch to OFF. MΩ? between 2)Connect connector to ABS sensor. ABSCM&H/U and 3)Measure resistance between ABSCM&H/U ABS sensor.
  • Page 47 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) H: TROUBLE CODE 22 — ABNORMAL ABS SENSOR (FRONT RH) — NOTE: For the diagnostic procedure, refer to TROUBLE CODE 28. <Ref. to ABS-48, TROUBLE CODE 28 — AB- NORMAL ABS SENSOR (REAR LH) —, Diagnostics Chart with Diagnosis Connector.> I: TROUBLE CODE 24 —...
  • Page 48 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-47...
  • Page 49 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) K: TROUBLE CODE 28 — ABNORMAL ABS SENSOR (REAR LH) — DIAGNOSIS: • Faulty ABS sensor signal (noise, irregular signal, etc.) • Faulty harness/connector TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR...
  • Page 50 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 5 6 7 27 28 29 30 31...
  • Page 51 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INSTALLATION OF ABS SENSOR. Are the ABS sensor installation Go to step 2. Tighten ABS sen- Turn ignition switch to OFF. bolts tightened securely? sor installation Tightening torque: bolts securely. 32 ±...
  • Page 52 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK TONE WHEEL RUNOUT. Is the runout less than 0.05 Go to step 8. Replace tone Measure tone wheel runout. mm (0.0020 in)? wheel. Front: <Ref. to ABS-20, Front Tone Wheel.> Rear: <Ref.
  • Page 53 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK SOURCES OF SIGNAL NOISE. Is the car telephone or the Go to step 15. Properly install the wireless transmitter properly car telephone or installed? the wireless trans- mitter. CHECK SOURCES OF SIGNAL NOISE. Are noise sources (such as an Install the noise Go to step 16.
  • Page 54 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-53...
  • Page 55 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) L: TROUBLE CODE 29 — ABNORMAL ABS SENSOR SIGNAL (ANY ONE OF FOUR) — DIAGNOSIS: • Faulty ABS sensor signal (noise, irregular signal, etc.) • Faulty tone wheel • Wheels turning freely for a long time TROUBLE SYMPTOM: •...
  • Page 56 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 5 6 7 27 28 29 30 31...
  • Page 57 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK IF THE WHEELS HAVE TURNED Check if the wheels have been The ABS is nor- Go to step 2. FREELY FOR A LONG TIME. turned freely for more than one mal.
  • Page 58 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK CONTAMINATION OF ABS SENSOR Is the ABS sensor piece or the Thoroughly Go to step 10. OR TONE WHEEL. tone wheel contaminated by remove dirt or Remove disc rotor from hub. dirt or other foreign matter? other foreign mat- ter.
  • Page 59 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) M: TROUBLE CODE 31 — ABNORMAL INLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (FRONT RH) — NOTE: For the diagnostic procedure, refer to TROUBLE CODE 37. <Ref. to ABS-59, TROUBLE CODE 37 — AB- NORMAL INLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (REAR LH) —, Diagnostics Chart with Di- agnosis Connector.>...
  • Page 60 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) P: TROUBLE CODE 37 — ABNORMAL INLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (REAR LH) — DIAGNOSIS: • Faulty harness/connector • Faulty inlet solenoid valve in ABSCM&H/U TROUBLE SYMPTOM: • ABS does not operate. ABS-59...
  • Page 61 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY GENERATOR IGNITION SWITCH B108 RELAY *1: LHD 5 HOLDER RHD 3 *2: LHD 6 B225 RHD 4 RELAY B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B200 B225 B264 1 2 3 4 5 6 7 8 9...
  • Page 62 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse. and Relay holder 3)Measure voltage between ABS relay connec- connector.
  • Page 63 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK ANY OTHER TROUBLE CODES AP- Are other trouble codes being Proceed with the A temporary poor PEARANCE. output? diagnosis corre- contact. sponding to the trouble code. ABS-62...
  • Page 64 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Q: TROUBLE CODE 32 — ABNORMAL OUTLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (FRONT RH) — NOTE: For the diagnostic procedure, refer to TROUBLE CODE 38. <Ref. to ABS-65, TROUBLE CODE 38 — AB- NORMAL OUTLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (REAR LH) —, Diagnostics Chart with Diagnosis Connector.>...
  • Page 65 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-64...
  • Page 66 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) T: TROUBLE CODE 38 — ABNORMAL OUTLET SOLENOID VALVE CIRCUIT(S) IN ABSCM&H/U (REAR LH) — DIAGNOSIS: • Faulty harness/connector • Faulty outlet solenoid valve in ABSCM&H/U TROUBLE SYMPTOM: • ABS does not operate. ABS-65...
  • Page 67 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY GENERATOR IGNITION SWITCH B108 RELAY *1: LHD 5 HOLDER RHD 3 *2: LHD 6 B225 RHD 4 RELAY B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B200 B225 B264 1 2 3 4 5 6 7 8 9...
  • Page 68 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse. and Relay holder 3)Measure voltage between ABS relay connec- connector.
  • Page 69 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK ANY OTHER TROUBLE CODES AP- Are other trouble codes being Proceed with the A temporary poor PEARANCE. output? diagnosis corre- contact. sponding to the trouble code. ABS-68...
  • Page 70 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-69...
  • Page 71 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) U: TROUBLE CODE 41 — ABNORMAL ABS CONTROL MODULE — DIAGNOSIS: • Faulty ABSCM&H/U. TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: B4M1457 ABS-70...
  • Page 72 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK GROUND CIRCUIT OF ABSCM&H/U. Is the resistance less than 0.5 Go to step 2. Repair Ω? 1)Turn ignition switch to OFF. ABSCM&H/U 2)Disconnect connector from ABSCM&H/U. ground harness. 3)Measure resistance between ABSCM&H/U and chassis ground.

  • Page 73: Wiring Diagram

    DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) V: TROUBLE CODE 42 — SOURCE VOLTAGE IS ABNORMAL. — DIAGNOSIS: • Power source voltage of the ABSCM&H/U is low or high. TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY GENERATOR IGNITION SWITCH B108...
  • Page 74 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK GENERATOR. Is the voltage between 10 and Go to step 2. Repair generator. 1)Start engine. 17 V? <Ref. to SC-12, 2)Idling after warm-up. Generator.> 3)Measure voltage between generator B termi- nal and chassis ground.
  • Page 75 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in con- Repair connector. Go to step 12. nectors between generator, battery and ABSCM&H/U? CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 13.
  • Page 76 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-75...
  • Page 77 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) W: TROUBLE CODE 44 — A COMBINATION OF AT CONTROL ABNORMAL — DIAGNOSIS: • Combination of AT control faults TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B200 B200 B200...
  • Page 78 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK SPECIFICATIONS OF THE AB- Is an ABSCM&H/U for AT Replace Go to step 2. SCM&H/U. model installed on a MT ABSCM&H/U. Check specifications of the mark to the model? <Ref. to ABS-7, ABSCM&H/U.
  • Page 79 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-78...
  • Page 80 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) X: TROUBLE CODE 51 — ABNORMAL VALVE RELAY — DIAGNOSIS: • Faulty valve relay TROUBLE SYMPTOM: • ABS does not operate. ABS-79...
  • Page 81 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-3 SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 RHD 3 ABS RELAY B225 *2: LHD 6 RHD 4 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT VALVE RELAY MOTOR RELAY B225...
  • Page 82 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse. and Relay holder 3)Measure voltage between ABS relay connec- connector.
  • Page 83 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in con- Repair connector. Go to step 11. nectors between generator, battery and ABSCM&H/U? CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 12.
  • Page 84 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Y: TROUBLE CODE 52 — ABNORMAL MOTOR AND/OR MOTOR RELAY — DIAGNOSIS: • Faulty motor • Faulty motor relay • Faulty harness connector TROUBLE SYMPTOM: • ABS does not operate. ABS-83...
  • Page 85 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 ABS RELAY B225 RHD 3 B255 *2: LHD 6 RHD 4 B200 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT VALVE RELAY MOTOR RELAY B264...
  • Page 86 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF ABSCM&H/U. Is the voltage between 10 and Go to step 2. Repair harness/ 1)Turn ignition switch to OFF. 15 V? connector 2)Disconnect connector from ABSCM&H/U. between battery 3)Turn ignition switch to ON.
  • Page 87 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK GROUND CIRCUIT OF ABSCM&H/U. Is the resistance less than 0.5 Go to step 11. Repair Ω? 1)Turn ignition switch to OFF. ABSCM&H/U 2)Measure resistance between ABSCM&H/U ground harness. connector and chassis ground. Connector &...
  • Page 88 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) ABS-87...
  • Page 89 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Z: TROUBLE CODE 54 — ABNORMAL STOP LIGHT SWITCH — DIAGNOSIS: • Faulty stop light switch TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY STOP LIGHT STOP LIGHT SWITCH SWITCH B200 WITHOUT CRUISE CONTROL WC :...
  • Page 90 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK STOP LIGHTS COME ON. Do stop lights come on? Go to step 2. Repair stop lights Depress the brake pedal. circuit. CHECK OPEN CIRCUIT IN HARNESS. Is the voltage between 10 and Go to step 3.
  • Page 91 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) AA:TROUBLE CODE 56 — ABNORMAL G SENSOR OUTPUT VOLTAGE — DIAGNOSIS: • Faulty G sensor output voltage TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200...
  • Page 92 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 B292 G SENSOR B292 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 1 2 3 4 5 6 7 8 9 10...
  • Page 93 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK ALL FOUR WHEELS FOR FREE Have the wheels been turned The ABS is nor- Go to step 2. TURNING. freely such as when the vehicle mal. Erase the is lifted up, or operated on a trouble code.
  • Page 94 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) Step Check CHECK GROUND SHORT OF HARNESS. Is the resistance more than 1 Go to step 9. Repair harness Measure resistance between ABSCM&H/U MΩ? between G sensor connector and chassis ground. and ABSCM&H/U. Connector &...
  • Page 95 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) AB:SELECT MONITOR AE:ANALOG DATA ARE DIS- PLAYED. Applicable cartridge of select monitor: <Ref. to ABS-10, SPECIAL TOOLS, PREPARATION Display screen Contents to be monitored TOOL, General Description.> Wheel speed detected by the Front Right NOTE: FR wheel speed ABS sensor is displayed in km/h or mile/...
  • Page 96 DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR ABS (DIAGNOSTICS) AH:FREEZE FRAME DATA NOTE: • Data stored at the time of trouble occurrence is shown on display. • Each time trouble occurs, the latest information is stored in the freeze frame data in memory. •...

  • Page 97: Diagnostics Chart With Subaru Select Monitor

    DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) 13.Diagnostics Chart with Subaru Select Monitor A: COMMUNICATION FOR INITIALIZING IMPOSSIBLE DIAGNOSIS: • Faulty harness connector TROUBLE SYMPTOM: • ABS warning light remains on. WIRING DIAGRAM: BATTERY GENERATOR B200 IGNITION SWITCH B108...
  • Page 98 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK IGNITION SWITCH. Is ignition switch ON? Go to step 2. Turn ignition switch to ON, and select ABS mode using the select monitor. CHECK BATTERY. Is voltage more than 11 V? Go to step 3.
  • Page 99 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Go to step 10. Repair harness Ω? EACH CONTROL MODULE AND DATA LINK and connector CONNECTOR. between each con- 1)Turn ignition switch to OFF.
  • Page 100 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check Is the resistance less 5 Ω? CHECK GROUND CIRCUIT OF ABS RELAY. Go to step 18. Repair open circuit 1)Turn ignition switch to OFF. between ABS 2)Measure resistance between ABS relay con- relay and chassis nector and chassis ground.
  • Page 101 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) B: NO TROUBLE CODE DIAGNOSIS: • ABS warning light circuit is shorted. TROUBLE SYMPTOM: • ABS warning light remains on. • NO TROUBLE CODE displayed on the select monitor. NOTE: When the ABS warning light is OFF and “NO TROUBLE CODE” is displayed on the select monitor, the sys- tem is in normal condition.
  • Page 102 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: LHD MODEL BATTERY SBF-3 SBF-1 IGNITION SWITCH No.13 RELAY HOLDER B108 : TURBO ENGINE MODEL NA : NON-TURBO ENGINE B225 MODEL ABS RELAY COMBINATION METER DIAGNOSIS TERMINAL INDICATOR LIGHT B264...
  • Page 103 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL BATTERY SBF-3 SBF-1 IGNITION SWITCH No.13 RELAY HOLDER B225 COMBINATION METER ABS RELAY INDICATOR LIGHT DIAGNOSIS TERMINAL B264 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT B264 1 2 3 4 5 6 7 8 9 10...
  • Page 104 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK WIRING HARNESS. Does the ABS warning light Go to step 2. Repair front wiring 1)Turn ignition switch to OFF. remain off? harness. 2)Disconnect connector (F74) from connector (B200). 3)Turn ignition switch to ON.
  • Page 105 — OPEN OR SHORT CIRCUIT IN FRONT RIGHT ABS SENSOR CIRCUIT — NOTE: For the diagnostic procedure, refer to TROUBLE CODE 27. <Ref. to ABS-106, TROUBLE CODE 27 — OPEN OR SHORT CIRCUIT IN REAR LEFT ABS SENSOR CIRCUIT —, Diagnostics Chart with Subaru Se- lect Monitor.> D: TROUBLE CODE 23 —...
  • Page 106 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-105...
  • Page 107 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) F: TROUBLE CODE 27 — OPEN OR SHORT CIRCUIT IN REAR LEFT ABS SENSOR CIRCUIT — DIAGNOSIS: • Faulty ABS sensor (Broken wire, input voltage too high) • Faulty harness connector TROUBLE SYMPTOM: •...
  • Page 108 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 109 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF ABS SENSOR USING Does the speed indicated on Go to step 2. Go to step 8. SELECT MONITOR. the display change in response 1)Select “Current data display & Save” on the to the speedometer reading select monitor.
  • Page 110 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK BATTERY SHORT OF ABS SEN- Is the voltage less than 1 V? Go to step 10. Replace ABS sen- SOR. sor. Front: <Ref. 1)Disconnect connector from ABSCM&H/U. to ABS-14, Front 2)Measure voltage between ABS sensor and ABS Sensor.>...
  • Page 111 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABS SENSOR GAP. Is the gap within the specifica- Go to step 16. Adjust the gap. Measure tone wheel to ABS sensor piece gap tions? NOTE: over entire perimeter of the wheel.
  • Page 112 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ANY OTHER TROUBLE CODES AP- Are other trouble codes being Proceed with the A temporary poor PEARANCE. output? diagnosis corre- contact. sponding to the NOTE: trouble code. Check harness...
  • Page 113 NOTE: For the diagnostic procedure, refer to TROUBLE CODE 28. <Ref. to ABS-114, TROUBLE CODE 28 — REAR LEFT ABNORMAL ABS SENSOR SIGNAL —, Diagnostics Chart with Subaru Select Monitor.> H: TROUBLE CODE 24 — FRONT LEFT ABNORMAL ABS SENSOR SIGNAL —...
  • Page 114 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-113...
  • Page 115 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) J: TROUBLE CODE 28 — REAR LEFT ABNORMAL ABS SENSOR SIGNAL — DIAGNOSIS: • Faulty ABS sensor signal (noise, irregular signal, etc.) • Faulty harness/connector TROUBLE SYMPTOM: • ABS does not operate.
  • Page 116 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 117 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF ABS SENSOR USING Does the speed indicated on Go to step 2. Go to step 8. SELECT MONITOR. the display change in response 1)Select “Current data display & Save” on the to the speedometer reading select monitor.
  • Page 118 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABS SENSOR SIGNAL. Is oscilloscope pattern smooth, Go to step 15. Go to step 12. 1)Raise all four wheels of ground. as shown in figure? 2)Turn ignition switch OFF.
  • Page 119 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK GROUND SHORT OF ABS SENSOR. Is the resistance more than 1 Go to step 17. Replace ABS sen- Measure resistance between ABS sensor and MΩ? sor. Front: <Ref. chassis ground.
  • Page 120 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK SHIELD CIRCUIT. Is the resistance less than 0.5 Go to step 24. Repair shield har- Ω? 1)Connect all connectors. ness. 2)Measure resistance between shield connec- tor and chassis ground.
  • Page 121 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) K: TROUBLE CODE 29 — ABNORMAL ABS SENSOR SIGNAL ON ANY ONE OF FOUR SENSOR — DIAGNOSIS: • Faulty ABS sensor signal (noise, irregular signal, etc.) • Faulty tone wheel • Wheels turning freely for a long time TROUBLE SYMPTOM: •...
  • Page 122 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 FRONT FRONT REAR REAR SENSOR LH SENSOR RH SENSOR LH SENSOR RH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 123 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK IF THE WHEELS HAVE TURNED Check if the wheels have been The ABS is nor- Go to step 2. FREELY FOR A LONG TIME. turned freely for more than one mal.
  • Page 124 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK CONTAMINATION OF ABS SENSOR Is the ABS sensor piece or the Thoroughly Go to step 10. OR TONE WHEEL. tone wheel contaminated by remove dirt or Remove disc rotor from hub.
  • Page 125 NOTE: For the diagnostic procedure, refer to TROUBLE CODE 37. <Ref. to ABS-126, TROUBLE CODE 37 — REAR LEFT INLET VALVE MALFUNCTION —, Diagnostics Chart with Subaru Select Monitor.> M: TROUBLE CODE 33 — FRONT LEFT INLET VALVE MALFUNCTION —...
  • Page 126 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-125...
  • Page 127 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) O: TROUBLE CODE 37 — REAR LEFT INLET VALVE MALFUNCTION — DIAGNOSIS: • Faulty harness/connector • Faulty inlet solenoid valve TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY GENERATOR IGNITION...
  • Page 128 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse.
  • Page 129 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 11. 1)Connect all connectors. the current diagnosis still being ABSCM&H/U. 2)Erase the memory. output? <Ref. to ABS-7, 3)Perform inspection mode.
  • Page 130 NOTE: For the diagnostic procedure, refer to TROUBLE CODE 38. <Ref. to ABS-130, TROUBLE CODE 38 — REAR LEFT OUTLET VALVE MALFUNCTION —, Diagnostics Chart with Subaru Select Monitor.> Q: TROUBLE CODE 34 — FRONT LEFT OUTLET VALVE MALFUNCTION —...
  • Page 131 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) S: TROUBLE CODE 38 — REAR LEFT OUTLET VALVE MALFUNCTION — DIAGNOSIS: • Faulty harness/connector • Faulty outlet solenoid valve TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY GENERATOR IGNITION...
  • Page 132 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse.
  • Page 133 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 11. 1)Connect all connectors. the current diagnosis still being ABSCM&H/U. 2)Erase the memory. output? <Ref. to ABS-7, 3)Perform inspection mode.
  • Page 134 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-133...
  • Page 135 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) T: TROUBLE CODE 41 — ABS CONTROL MODULE MALFUNCTION — DIAGNOSIS: • Faulty ABSCM&H/U TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: B4M1457 ABS-134...
  • Page 136 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK GROUND CIRCUIT OF ABSCM&H/U. Is the resistance less than 0.5 Go to step 2. Repair Ω? 1)Turn ignition switch to OFF. ABSCM&H/U 2)Disconnect connector from ABSCM&H/U. ground harness. 3)Measure resistance between ABSCM&H/U and chassis ground.
  • Page 137 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) U: TROUBLE CODE 42 — POWER SUPPLY VOLTAGE TOO LOW — DIAGNOSIS: • Power source voltage of the ABSCM&H/U is low. TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY GENERATOR...
  • Page 138 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK GENERATOR. Is the voltage between 10 and Go to step 2. Repair generator. 1)Start engine. 15 V? <Ref. to SC-12, 2)Idling after warm-up. Generator.> 3)Measure voltage between generator B termi- nal and chassis ground.
  • Page 139 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) V: TROUBLE CODE 42 — POWER SUPPLY VOLTAGE TOO HIGH — DIAGNOSIS: • Power source voltage of the ABSCM&H/U is high. TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY GENERATOR...
  • Page 140 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK GENERATOR. Is the voltage between 10 and Go to step 2. Repair generator. 1)Start engine. 17 V? <Ref. to SC-12, 2)Idling after warm-up. Generator.> 3)Measure voltage between generator B termi- nal and chassis ground.
  • Page 141 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in con- Repair connector. Go to step 12. nectors between generator, battery and ABSCM&H/U? CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 13.
  • Page 142 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-141...
  • Page 143 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) W: TROUBLE CODE 44 — ABS-AT CONTROL (NON CONTROLLED) — DIAGNOSIS: • Combination of AT control faults TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 144 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK SPECIFICATIONS OF THE AB- Is an ABSCM&H/U for AT Replace Go to step 2. SCM&H/U. model installed on a MT ABSCM&H/U. Check specifications of the mark to the model? <Ref.
  • Page 145 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) X: TROUBLE CODE 44 — ABS-AT CONTROL (CONTROLLED) — DIAGNOSIS: • Combination of AT control faults TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 146 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK BATTERY SHORT OF HARNESS. Is the voltage less than 1 V? Go to step 2. Repair harness 1)Turn ignition switch to OFF. between TCM and 2)Disconnect two connectors from TCM.
  • Page 147 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-146...
  • Page 148 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Y: TROUBLE CODE 51 — VALVE RELAY MALFUNCTION — DIAGNOSIS: • Faulty valve relay TROUBLE SYMPTOM: • ABS does not operate. ABS-147...
  • Page 149 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-3 SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 RHD 3 ABS RELAY B225 *2: LHD 6 RHD 4 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 150 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF RELAY HOLD- Is the voltage more than 10 V? Go to step 2. Repair open circuit in harness 1)Turn ignition switch to OFF. between battery 2)Remove fuse.
  • Page 151 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 11. 1)Connect all connectors. the current diagnosis still being ABSCM&H/U. 2)Erase the memory. output? <Ref. to ABS-7, 3)Perform inspection mode.
  • Page 152 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Z: TROUBLE CODE 51 — VALVE RELAY ON FAILURE — DIAGNOSIS: • Faulty valve relay TROUBLE SYMPTOM: • ABS does not operate. ABS-151...
  • Page 153 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-3 SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 RHD 3 ABS RELAY B225 *2: LHD 6 RHD 4 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 154 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK VALVE RELAY IN ABSCM&H/U. Is the resistance more than 1 Go to step 2. Replace Measure resistance between ABSCM&H/U ter- MΩ? ABSCM&H/U. minals. <Ref. to ABS-7, Terminals ABS Control Mod- No.
  • Page 155 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-154...
  • Page 156 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AA:TROUBLE CODE 52 — OPEN CIRCUIT IN MOTOR RELAY CIRCUIT — DIAGNOSIS: • Faulty motor • Faulty motor relay • Faulty harness connector TROUBLE SYMPTOM: • ABS does not operate. ABS-155...
  • Page 157 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 ABS RELAY B225 RHD 3 B255 *2: LHD 6 RHD 4 B200 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 158 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF ABSCM&H/U. Is the voltage between 10 and Go to step 2. Repair harness/ 1)Turn ignition switch to OFF. 13 V? connector 2)Disconnect connector from ABSCM&H/U. between battery 3)Turn ignition switch to ON.
  • Page 159 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-158...
  • Page 160 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AB:TROUBLE CODE 52 — MOTOR RELAY ON FAILURE — DIAGNOSIS: • Faulty motor • Faulty motor relay • Faulty harness connector TROUBLE SYMPTOM: • ABS does not operate. ABS-159...
  • Page 161 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 ABS RELAY B225 RHD 3 B255 *2: LHD 6 RHD 4 B200 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 162 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK MOTOR RELAY IN ABSCM&H/U. Is the resistance more than 1 Go to step 2. Replace Measure resistance between ABSCM&H/U ter- MΩ? ABSCM&H/U. minals. <Ref. to ABS-7, Terminals ABS Control Mod- No.
  • Page 163 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-162...
  • Page 164 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AC:TROUBLE CODE 52 — MOTOR MALFUNCTION — DIAGNOSIS: • Faulty motor • Faulty motor relay • Faulty harness connector TROUBLE SYMPTOM: • ABS does not operate. ABS-163...
  • Page 165 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: BATTERY SBF-1 IGNITION SWITCH B108 RELAY HOLDER *1: LHD 5 ABS RELAY B225 RHD 3 B255 *2: LHD 6 RHD 4 B200 B264 B200 B200 ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT...
  • Page 166 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK INPUT VOLTAGE OF ABSCM&H/U. Is the voltage between 10 and Go to step 2. Repair harness/ 1)Turn ignition switch to OFF. 13 V? connector 2)Disconnect connector from ABSCM&H/U. between battery 3)Turn ignition switch to ON.
  • Page 167 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AD:TROUBLE CODE 54 — STOP LIGHT SWITCH SIGNAL CIRCUIT MALFUNCTION — DIAGNOSIS: • Faulty stop light switch TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: BATTERY STOP LIGHT STOP LIGHT SWITCH...
  • Page 168 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF STOP LIGHT SWITCH Is the reading indicated on Go to step 2. Go to step 3. USING SELECT MONITOR. monitor display less than 1.5 1)Select “Current data display & Save” on the select monitor.
  • Page 169 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AE:TROUBLE CODE 56 — OPEN OR SHORT CIRCUIT IN G SENSOR CIRCUIT — DIAGNOSIS: • Faulty G sensor output voltage TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND...
  • Page 170 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 B292 G SENSOR B292 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 171 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF G SENSOR USING SE- Is the G sensor output on the Go to step 2. Go to step 5. LECT MONITOR. monitor display between 2.1 1)Select “Current data display & Save” on the and 2.5 V when the G sensor...
  • Page 172 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK G SENSOR. Is the voltage between 0.5 and Go to step 11. Replace G sen- Measure voltage between G sensor connector 0.9 V when G sensor is sor. <Ref. to ABS- terminals.
  • Page 173 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AF:TROUBLE CODE 56 — BATTERY SHORT IN G SENSOR CIRCUIT — DIAGNOSIS: • Faulty G sensor output voltage TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND...
  • Page 174 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 B292 G SENSOR B292 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 175 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF G SENSOR USING SE- Is the G sensor output on the Go to step 2. Go to step 5. LECT MONITOR. monitor display between 2.1 1)Select “Current data display & Save” on the and 2.5 V when the G sensor...
  • Page 176 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK BATTERY SHORT OF HARNESS. Is the voltage less than 1 V? Go to step 13. Repair harness 1)Turn ignition switch to ON. between G sensor 2)Measure voltage between ABSCM&H/U con- and ABSCM&H/U.
  • Page 177 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 23. 1)Connect all connectors. the current diagnosis still being ABSCM&H/U. 2)Erase the memory. output? <Ref. to ABS-7, 3)Perform inspection mode.
  • Page 178 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) ABS-177...
  • Page 179 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AG:TROUBLE CODE 56 — ABNORMAL G SENSOR HIGH µ µ µ µ OUTPUT — DIAGNOSIS: • Faulty G sensor output voltage TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL...
  • Page 180 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 B292 G SENSOR B292 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 181 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK OUTPUT OF G SENSOR USING SE- Is the G sensor output on mon- Go to step 2. Go to step 6. LECT MONITOR. itor display 2.3±0.2 V when the 1)Select “Current data display &...
  • Page 182 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ABSCM&H/U. Is the same trouble code as in Replace Go to step 11. 1)Turn ignition switch to OFF. the current diagnosis still being ABSCM&H/U. 2)Connect all connectors. output? <Ref. to ABS-7, 3)Erase the memory.
  • Page 183 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) AH:TROUBLE CODE 56 — DETECTION OF G SENSOR STICK — DIAGNOSIS: • Faulty G sensor output voltage TROUBLE SYMPTOM: • ABS does not operate. WIRING DIAGRAM: LHD MODEL ABS CONTROL MODULE AND...
  • Page 184 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) WIRING DIAGRAM: RHD MODEL ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT SHIELD JOINT CONNECTOR B200 B292 G SENSOR B292 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
  • Page 185 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK ALL FOUR WHEELS FOR FREE Have the wheels been turned The ABS is nor- Go to step 2. TURNING. freely such as when the vehicle mal. Erase the is lifted up, or operated on a trouble code.
  • Page 186 DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR ABS (DIAGNOSTICS) Step Check CHECK G SENSOR. Is the voltage between 3.7 and Go to step 11. Replace G sen- Measure voltage between G sensor connector 4.1 V when G sensor is sor. <Ref. to ABS- terminals.

  • Page 187: General Diagnostics Table

    GENERAL DIAGNOSTICS TABLE ABS (DIAGNOSTICS) 14.General Diagnostics Table A: INSPECTION Symptom Probable faulty units/parts • ABSCM&H/U (solenoid valve) • ABS sensor • Brake (caliper & piston, pads) Vehicle pulls to either side. • Wheel alignment • Tire specifications, tire wear and air pressures •...
  • Page 188 GENERAL DIAGNOSTICS TABLE ABS (DIAGNOSTICS) Symptom Probable faulty units/parts • Incorrect wiring or piping connections Excessive pedal vibration • Road surface (uneven) • ABSCM&H/U (mount bushing) Noise from ABSCM&H/U • ABS sensor • Brake piping • ABSCM&H/U (mount bushing) • ABS sensor •...
  • Page 189 GENERAL DIAGNOSTICS TABLE ABS (DIAGNOSTICS) ABS-188...

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