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CHECK CRUISE CONTROL COMMAND SWITCH

CHECK CRUISE CONTROL COMMAND SWITCH

TROUBLE SYMPTOM:

Cruise control cannot be set. (Cancelled immediately.)

WIRING DIAGRAM:


CHECK SET/COAST SWITCH CIRCUIT.

Turn the ignition switch to OFF.

Disconnect the cruise control module harness connector.

Measure the voltage between harness connector terminal and chassis ground when SET/COAST switch is pressed and not pressed.

Connector & terminal

(B94) No. 10 (+) — Chassis ground (−):

Is the voltage 0 V when SET/COAST switch is not pressed? Is the voltage more than 10 V when SET/COAST switch is pressed?

Yes


No


CHECK RES/ACC SWITCH CIRCUIT.

Measure the voltage between harness connector terminal and chassis ground when RES/ACC switch is pressed and not pressed.

Connector & terminal

(B94) No. 9 (+) — Chassis ground (−):

Is the voltage 0 V when RES/ACC switch is not pressed? Is the voltage more than 10 V when RES/ACC switch is pressed?

Yes


No


CHECK CANCEL SWITCH CIRCUIT.

Measure the voltage between harness connector terminal and chassis ground when CANCEL switch is pressed and not pressed.

Connector & terminal

(B94) No. 9 (+) — Chassis ground (−):

(B94) No. 10 (+) — Chassis ground (−):

Is the voltage 0 V when CANCEL switch is not pressed? Is the voltage more than 10 V when CANCEL switch is pressed?

Yes

Cruise control switch circuit is OK.


No


CHECK POWER SUPPLY FOR CRUISE CONTROL SWITCH.

Check the horn operation.

Does the horn sound?

Yes


No

• Check the fuse No. 6 (in main fuse box).

• Check the horn relay.

• Check the harness for open or short between cruise control switch and fuse & relay box.


CHECK CRUISE CONTROL COMMAND SWITCH.

Remove and check the cruise control command switch.

Is the cruise control command switch OK?

Yes

Check the harness between cruise control switch and cruise control module.


No

Replace the cruise control command switch.