Suzuki Wagon R Manual page 4039

8C-4 INSTRUMENTATION / DRIVER INFORMATION
Vehicle Speed Signal Circuit (Speedometer no Indication)
1. P/S control module (if equipped)
2. Combination meter
3. ECM
Step
1 Is vehicle equipped with EPS?
2 Check for wheel speed signal circuit.
1) Check DTC in EPS referring to "DTC
CHECK" in section 3B1.
Does exist DTC C1121 (DTC 21), C1123 (DTC
23) or DTC C1124 (DTC 24) in EPS?
3 Check for wheel speed signal circuit.
1) Check DTC in ABS referring to "DIAGNOS-
TIC TROUBLE CODE (DTC) CHECK" in
section 5E1.
Does exist DTC C1021 (DTC 21) or C1022
(DTC 22) in ABS?
4 Check for vehicle speed signal circuit.
1) Turn ignition switch to OFF position.
2) Disconnect the following connectors.
• ABS hydraulic unit/control module connec-
tor "E20"
• P/S control module connector "G14"
• ECM connector "G88"
• Multi information display connector "G97"
3) Turn ignition switch to ON position, and
measure voltage between "E20-12" and
vehicle body ground.
Is it voltage 10 – 14 V?
5 Check for vehicle speed signal circuit.
1) Turn ignition switch to OFF position.
2) Connect multi information display connector
"G97".
3) Disconnect combination meter connector
"G25".
4) Turn ignition switch to ON position and mea-
sure voltage between "G97-12" and vehicle
body ground.
Is it voltage 10 – 14 V?
1
G14-7
2
G25-2 PPL V E20-12
3
G97-12
4
G88-89
4. ABS hydraulic unit control module
5. Multi information display
6. Front right wheel speed sensor
Action
5
E20-19 WHT/BLU
E20-18
ORN/BLU
7. Wheel speed sensor ring
Yes
Go to step 2
Go to "DTC C1121/
C1123/C1124 VEHICLE
SPEED SIGNAL CIR-
CUIT FAIL" in Section
3B1.
Go to "DTC 21, 22-
RIGHT-FRONT WHEEL
SPEED SENSOR CIR-
CUIT OR SENSOR
RING" in Section 5E1.
Go to step 5.
Go to step 6.
6 7
No
Go to step 3.
Go to step 3.
Go to step 4.
Check open or shorted to
ground in "PPL" wire.
If circuit is OK, substitute
a known-good Combina-
tion meter and recheck.
Check open or shorted to
ground in "PPL" wire. If
circuit is OK, substitute a
known-good multi infor-
mation display and
recheck.