Subaru Impreza 2002 Service Manual page 3726

Step
1 CHECK INHIBITOR SWITCH CIRCUIT.
1)Turn the ignition switch to OFF.
2)Disconnect the inhibitor switch harness con-
nector.
3)Turn the ignition switch to ON.
4)Turn the cruise control main switch to ON.
5)Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(T7) No. 12 (+) — Chassis ground ( − − − − ):
2 CHECK INHIBITOR SWITCH CIRCUIT.
1)Turn the cruise control main switch and igni-
tion switch to OFF.
2)Disconnect the starter motor harness con-
nector.
3)Measure the resistance between inhibitor
switch harness connector terminal and chassis
ground.
Connector & terminal
(T7) No. 7 — (B14) No. 1:
3 CHECK INHIBITOR SWITCH.
Remove and check the inhibitor switch. <Ref.
to CC-9, Inhibitor Switch.>
DIAGNOSTICS CHART WITH SYMPTOM
Is the voltage more than 10 V? Go to step 2.
Is the resistance less than 10
Ω?
Is the inhibitor switch OK?
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Check
CC-27
Yes
Check the harness
for open or short
between inhibitor
switch and cruise
control module.
Go to step 3. Repair the har-
ness.
Inhibitor switch cir- Replace the inhibi-
cuit is OK. tor switch.
No