Subaru Impreza 2002 Service Manual page 3718

Step
1 CHECK CRUISE CONTROL MAIN SWITCH
CIRCUIT.
1)Turn the ignition switch to OFF.
2)Disconnect the cruise control main switch
harness connector.
3)Turn the ignition switch to ON.
4)Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B161) No. 3 (+) — Chassis ground ( − − − − ):
2 CHECK CRUISE CONTROL MAIN SWITCH
CIRCUIT.
1)Turn the ignition switch OFF.
2)Disconnect the cruise control module har-
ness connector.
3)Measure the resistance between cruise con-
trol module harness connector terminal and
cruise control main switch harness connector
terminal.
Connector & terminal
(B94) No. 15 — (B161) No. 5:
(B94) No. 1 — (B161) No. 6:
(B94) No. 11 — (B161) No. 1:
3 CHECK CRUISE CONTROL MAIN SWITCH.
Remove and check the cruise control main
switch. <Ref. to CC-5, Cruise Control Main
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 cruise control main
switch OK?
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Check
CC-19
Yes
• Check the fuse
No. 18 (in fuse &
relay box).
• Check the har-
ness for open or
short between
cruise control main
switch and fuse &
relay box.
Go to step 3. Repair the har-
ness.
Replace the cruise Replace the cruise
control module. control main
switch.
No