Inspection Procedure 4

INSPECTION PROCEDURE 4: When the Auto-cruise Control "CANCEL" Switch is Set to ON, Auto-cruise Control System is not Cancelled.

COMMENT
The cause is probably an open-circuit in the output circuit inside the "CANCEL" switch.

TROUBLESHOOTING HINTS (The most likely causes for this case:)
- Malfunction of the auto-cruise control switch.
- Malfunction of the ECM.

DIAGNOSIS PROCEDURE

STEP 1. Check for diagnostic trouble code.

Read the diagnostic trouble code of the auto-cruise control system. Scan Tool Connecting

Q: Is DTC 15 set?

YES : Refer to Diagnostic Trouble Code Procedures - DTC P15: Auto-cruise Control Switch System. Then go to Step 3. DTC 15

NO : Go to Step 2.

STEP 2. Retest the system.

Q: Does the auto-cruise control "CANCEL" switch set to ON, auto-cruise control system is cancelled?

YES : It can be assumed that this malfunction is intermittent (Refer to General (Body and Chassis), How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction).

NO : Replace the ECM. When the ECM is replaced, register the encrypted code (Refer to Wireless Control Module, Troubleshooting - ID Code Registration Judgment Table). 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?

YES : The procedure is complete.

NO : Return to Step 1.