Subaru IMPREZA GD 2007 Series Manual page 3088

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
5 CHECK DRIVER'S CONTROL CENTER DIF-
FERENTIAL CONTROL MODULE OUTPUT
SIGNAL.
1) Move the center differential control dial from
the differential lock position to the differential
free position.
2) Read the voltage between the driver's con-
trol center differential control module harness
connectors.
Connector & terminal
(B381) No. 9 (+) — (B381) No. 24 (–):
6 CHECK FUSE (NO. 4).
Remove the fuse (No. 4).
7 CHECK POWER SUPPLY CIRCUIT OF DRIV-
ER'S CONTROL CENTER DIFFERENTIAL
RELAY.
1) Install the fuse.
2) Disconnect the driver's control center differ-
ential relay harness connector.
3) Measure the voltage between the driver's
control center differential relay harness connec-
tor and chassis ground.
Connector & terminal
(B288) No. 4 (+) — Chassis ground (–):
8 CHECK IGNITION POWER SUPPLY CIRCUIT
OF DRIVER'S CONTROL CENTER DIFFER-
ENTIAL RELAY.
Measure the voltage between the driver's con-
trol center differential relay and chassis ground.
Connector & terminal
(B288) No. 3 (+) — Chassis ground (–):
MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)
Check
Does the voltage drop
smoothly?
Is the fuse (No. 4) blown out?
Is the voltage 10 V or more?
Is the voltage 10 V or more?
6MT(diag)-53
Yes No
Even though the Go to step 6.
indicator light
flashed, the circuit
is normal. A tem-
porary poor con-
tact of connector or
harness may be
the cause. Repair
poor contact of the
driver's control
center differential
control module or
transmission har-
ness or connec-
tors. Also, check
for poor contact in
the power supply
circuit.
Replace the fuse Go to step 7.
(No. 4). If the
replaced fuse (No.
4) has blown out
easily, repair the
short circuit of har-
ness between fuse
(No. 4) and driver's
control center dif-
ferential control
module.
Go to step 8. Repair the open or
short circuit
between fuse (No.
4), driver's control
center differential
relay, and battery.
Go to step 9. Repair the open
circuit between
fuse (No. 11),
driver's control
center differential
relay, and battery.