Subaru Legacy 2002 Service Manual page 3333

Cruise Control System (Diagnostics)
No.
1 CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn ignition switch OFF.
2) Disconnect inhibitor switch harness con-
nector.
3) Turn ignition switch ON.
4) Turn cruise control main switch ON.
5) Measure voltage between harness connec-
tor terminal and chassis ground.
Connector & terminal
(T7) No. 12 (+) — Chassis ground (−):
2 CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn cruise control main switch and ignition
switch OFF.
2) Disconnect starter motor harness connec-
tor.
3) Measure resistance between inhibitor
switch harness connector terminal and chas-
sis ground.
Connector & terminal
(T7) No. 7 (+) — (B14) No. 1 (−):
3 CHECK INHIBITOR SWITCH.
Remove and check inhibitor switch. <Ref. to
CC-11, Inhibitor Switch.>
DIAGNOSTICS CHART WITH SYMPTOM
Step Check
Is the voltage more than 10
V?
Is the resistance less than
10 Ω?
Is inhibitor switch OK?
CC-26
Yes
Go to step 2. Check harness for
open or short
between inhibitor
switch and cruise
control module.
Go to step 3. Repair harness.
Inhibitor switch Replace inhibitor
circuit is OK. switch.
No