Inspection Procedure 4: When the Auto-cruise Control "CANCEL" Switch is Set to ON, Auto-cruise Control is not Cancelled.


COMMENTS ON TROUBLE SYMPTOM


The cause is probably an open-circuit in the circuit inside the auto-cruise control "CANCEL" switch.

PROBABLE CAUSE



DIAGNOSIS

STEP 1. Check the auto-cruise control switch.
Refer to .

Q. Is the check result normal?
Go to Step 2.
Replace the auto-cruise control switch (Refer to ). Then go to Step 3.

STEP 2. Retest the system.

Q. Does the auto-cruise control "CANCEL" switch set to ON, auto-cruise control system is cancelled?
It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).
Replace the engine-ECU (Refer to GROUP 13D - Engine-ECU ). Then go to Step 3.

STEP 3. Retest the system.

Q. Does the auto-cruise control "CANCEL" switch set to ON, auto-cruise control system is cancelled?
The procedure is complete.
Return to Step 1.