Subaru IMPREZA GD 2007 Series Manual page 3089

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)
Step
9 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND DRIVER'S CONTROL
RELAY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector of the driver's
control center differential control module.
3) Measure resistance of the harness between
the driver's control center differential control
module harness connector and the driver's con-
trol relay harness connector.
Connector & terminal
(B381) No. 7 — (B288) No. 2:
(B381) No. 8 — (B288) No. 2:
(B381) No. 10 — (B288) No. 1:
10 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND DRIVER'S CONTROL
RELAY.
Measure resistance of the harness between the
driver's control center differential control mod-
ule harness connector and the chassis ground
Connector & terminal
(B381) No. 7 — Chassis ground:
(B381) No. 8 — Chassis ground:
(B381) No. 10 — Chassis ground:
11 CHECK DRIVER'S CONTROL RELAY.
Measure the resistance between driver's con-
trol relay terminals.
Terminals
No. 4 — No. 2:
12 CHECK DRIVER'S CONTROL RELAY.
Connect the battery positive lead to terminal
No. 3 and the negative lead to terminal No. 1,
then measure the resistance between driver's
control relay terminals.
Terminals
No. 4 — No. 2:
13 CHECK DRIVER'S CONTROL CENTER DIF-
FERENTIAL CONTROL MODULE IGNITION
POWER SUPPLY CIRCUIT.
1) Connect all the connectors.
2) Turn the ignition switch to ON.
3) Measure the voltage between the driver's
control center differential control module and
chassis ground.
Connector & terminal
(B381) No. 10 (+) — Chassis ground (–):
14 CHECK DRIVER'S CONTROL CENTER DIF-
FERENTIAL CONTROL MODULE IGNITION
POWER SUPPLY CIRCUIT.
Measure the voltage between the driver's con-
trol center differential control module and chas-
sis ground.
Connector & terminal
(B381) No. 7 (+) — Chassis ground (–):
(B381) No. 8 (+) — Chassis ground (–):
Check
Is the resistance less than 1 Ω? Go to step 10.
Is the resistance 1 MΩ or
more?
Is the resistance 1 MΩ or
more?
Is the resistance less than 1 Ω? Go to step 13.
Is the voltage less than 1 V?
Is the voltage 8 V or more?
6MT(diag)-54
Yes No
Repair the open
circuit between the
driver's control
center differential
control module
harness connector
and driver's control
relay harness con-
nector.
Go to step 11. Repair the short
circuit between the
driver's control
center differential
control module
harness connector
and driver's control
relay harness con-
nector.
Go to step 12.
Replace the
driver's control
relay.
Replace the
driver's control
relay.
Go to step 14. Go to step 16.
Go to step 15. Go to step 16.