Subaru LEGACY 2006 Manual page 3480

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Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1 CHECK SPORT SHIFT SWITCH.
1) Move the select lever to SPORT mode.
2) Shift and hold the select lever to up side.
3) Read the "Up Switch" data of TCM using
Subaru Select Monitor. <Ref. to 4AT(diag)-15,
READ CURRENT DATA, OPERATION, Subaru
Select Monitor.>
2 CHECK SPORT SHIFT SWITCH.
1) Shift and hold the select lever to down side.
2) Read the "Down Switch" data of TCM using
Subaru Select Monitor.
3 CHECK THE BODY INTEGRATED UNIT.
1) Turn the ignition switch to ON.
2) Shift and hold the select lever to up side.
3) Read the "TIP UP SW" data of body inte-
grated unit using Subaru Select Monitor. <Ref.
to LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
4 CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit. <Ref. to
LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
5 CHECK SPORT SHIFT SWITCH GROUND
CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from SPORT
shift switch.
3) Measure the resistance of harness
between SPORT shift switch connector and
chassis ground.
Connector & terminal
(B116) No. 6 — Chassis ground:
6 CHECK SPORT SHIFT SWITCH.
Measure the resistance between SPORT shift
switch terminals.
Connector & terminal
(B116) No. 6 — No. 7:
7 CHECK SPORT SHIFT SWITCH.
1) Shift and hold the select lever to up side.
2) Measure the resistance between SPORT
shift switch terminals.
Connector & terminal
(B116) No. 6 — No. 7:
Check
Is ON displayed?
Is ON displayed?
Is ON displayed?
Is DTC of CAN communication
displayed?
Is the resistance less than 1
Ω?
Is the resistance more than 1
MΩ?
Is the resistance less than 1
Ω?
4AT(diag)-94
Yes No
Go to step 2. Go to step 3.
Go to the proce- Go to step 12.
dure "INSPEC-
TION FOR
SPORT SHIFT
INDICATOR
LIGHT". <Ref. to
4AT(diag)-97,
CHECK SPORT
SHIFT INDICA-
TOR, Diagnostic
Procedure without
Diagnostic Trou-
ble Code (DTC).>
Go to step 4. Go to step 5.
Perform the diag- Check the TCM.
nosis according to
DTC.
Go to step 6. Repair the open
circuit of harness
between SPORT
shift switch and
chassis ground.
Go to step 7.
Replace the guide
plate assembly.
Go to step 8. Replace the guide
plate assembly.