CC(H4DOTC 2.5)-23
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK TRANSMISSION TYPE. Is the target MT model? Go to step 2. Go to step 5.
2 CHECK NEUTRAL POSITION SWITCH CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the neutral position switch har-
ness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B128) No. 1 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step 3. Check the harness
for open or short
between neutral
position switch and
ECM.
3 CHECK NEUTRAL POSITION SWITCH CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Measure the resistance between neutral
position switch harness connector terminal and
chassis ground.
Connector & terminal
(B128) No. 3 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 4. Repair the har-
ness.
4 CHECK NEUTRAL POSITION SWITCH.
Remove and check the neutral position switch.
Is the neutral position switch
OK?
Neutral position
switch circuit is
OK.
Replace the neu-
tral position switch.
5 CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the inhibitor switch harness
connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(T7) No. 12 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step 6. Check the harness
for open or short
between inhibitor
switch and ECM.
6 CHECK INHIBITOR SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Measure the resistance between inhibitor
switch harness connector terminal and chassis
ground.
Connector & terminal
(T7) No. 7 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 7. Repair the har-
ness.
7 CHECK INHIBITOR SWITCH.
Remove and check the inhibitor switch.
Is the inhibitor switch OK? Inhibitor switch cir-
cuit is OK.
Replace the inhibi-
tor switch.
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