Subaru IMPREZA GD 2007 Series Manual page 3097

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)
Step
1 CHECK GROUND CIRCUIT OF MANUAL
MODE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the manual mode switch con-
nector.
3) Measure the resistance of harness between
manual mode switch harness connector and
chassis ground.
Connector & terminal
(B339) No. 4 — Chassis ground:
2 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND MANUAL MODE
SWITCH.
1) Disconnect the driver's control center differ-
ential control module harness connector.
2) Measure resistance of the harness between
the driver's control center differential control
module and the manual mode switch.
Connector & terminal
(B380) No. 13 — (B339) No. 5:
3 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND MANUAL MODE
SWITCH.
Measure resistance of the harness between the
driver's control center differential control mod-
ule and the chassis ground
Connector & terminal
(B380) No. 13 — Chassis ground:
4 CHECK MANUAL MODE SWITCH.
1) Remove the manual mode switch.
2) Measure the resistance between the man-
ual mode switch connectors.
Terminals
No. 4 — No. 5:
5 CHECK MANUAL MODE SWITCH.
1) Push and hold down the manual mode
switch.
2) Measure the resistance between the man-
ual mode switch connectors.
Terminals
No. 4 — No. 5:
6 CHECK DRIVER'S CONTROL CENTER DIF-
FERENTIAL CONTROL MODULE INPUT
SIGNAL.
1) Install the manual mode switch.
2) Connect the harness connector of the
driver's control center differential control mod-
ule.
3) Connect the Subaru Select Monitor to the
data link connector.
4) Turn the ignition switch to ON. (engine OFF)
5) Run the Subaru Select Monitor.
6) Read the data of "AUTO/MANUAL mode
change switch" using the Subaru Select Moni-
tor.
Check
Is the resistance 1 MΩ or
more?
Is the resistance less than 1 Ω? Go to step 3.
Is the resistance 1 MΩ or
more?
Is the resistance 1 MΩ or
more?
Is the resistance less than 1 Ω? Go to step 6.
Is the data "OFF"?
6MT(diag)-62
Yes No
Repair the open Go to step 2.
circuit of the har-
ness between the
manual mode
switch harness
connector and
chassis ground.
Repair the harness
open circuit
between the
driver's control
center differential
control module and
the manual mode
switch.
Go to step 4.
Repair the harness
short circuit
between the
driver's control
center differential
control module and
the manual mode
switch.
Go to step 5.
Replace the man-
ual mode switch.
Replace the man-
ual mode switch.
Go to step 7. Repair the poor
contact.