P1666

P1666-CRUISE CONTROL MODULE INTERNAL

For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
Continuously monitored with the engine running. ACC Module voltage is at battery voltage, and the ACC Module in normal mode.

- Set Condition:
Internal ACC Module failure detected. The ACC module will disable the Adaptive Cruise Control (ACC) system and the SERVICE ACC message will display in the CCN. Once the DTC goes to stored, the ACC system will return to normal operation. The DTC will be cleared after the ACC Module sees 100 consecutive key cycles of the STORED DTC.







Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding Initial Inspection and Diagnostic Overview.


Diagnostic Test


1. DTC IS ACTIVE
The ACC Module has detected an internal failure.
Is the DTC active at this time?

Yes


- Replace the ACC Module.
- Perform the ACC MODULE VERIFICATION TEST. Adaptive Cruise Control (ACC) Verification Test


No


- No repair is necessary. Ensure the lens is free of dirt, damage or other obstruction. Clear the DTC and verify the proper operation of the ACC system.
- Perform the ACC MODULE VERIFICATION TEST. Adaptive Cruise Control (ACC) Verification Test