Subaru IMPREZA GD 2007 Series Manual page 3100

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK PARKING BRAKE SWITCH CIR-
CUIT.
1) Turn the ignition switch to ON.
2) Start the engine.
3) Apply the parking brake.
2 CHECK PARKING BRAKE SWITCH CIR-
CUIT.
Release the parking brake.
3 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND PARKING BRAKE
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connectors from
the driver's control center differential control
module, combination meter and parking brake
switch.
3) Measure resistance of the harness connec-
tor between the driver's control center differen-
tial control module and the parking brake
switch.
Connector & terminal
(B380) No. 5 — (B27) No. 1:
4 CHECK HARNESS BETWEEN DRIVER'S
CONTROL CENTER DIFFERENTIAL CON-
TROL MODULE AND PARKING BRAKE
SWITCH.
Measure the resistance between the driver's
control center differential control module con-
nector and chassis ground.
Connector & terminal
(B380) No. 5 — Chassis ground:
5 CHECK DRIVER'S CONTROL CENTER DIF-
FERENTIAL CONTROL MODULE INPUT
SIGNAL.
1) Connect all harness connectors.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch and run the Subaru
Select Monitor.
4) Release the parking brake.
5) Read the data of "Parking switch" using the
Subaru Select Monitor.
MANUAL TRANSMISSION AND DIFFERENTIAL (DIAGNOSTICS)
Check
Does the brake warning light
illuminate?
Does the brake warning light
become OFF?
Is the resistance less than 1 Ω? Go to step 4.
Is the resistance 1 MΩ or
more?
Is the data OFF?
6MT(diag)-65
Yes No
Go to step 2. Check the parking
pilot & brake fluid
warning light cir-
cuit.
Go to step 3.
Check the amount
of brake fluid, park-
ing pilot & brake
fluid warning light
circuit and ABS cir-
cuit.
Repair open cir-
cuits and poor con-
tacts of connectors
on the harness.
Go to step 5. Repair short cir-
cuits of harness.
Go to step 6.
Repair the poor
contact.