C126E

C126E-00-XBW RULE VIOLATION 08

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode.

- Set Condition:
A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC Unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
ACTIVE DTC

NOTE:
- To help in the service of the ACC System, it is recommended reviewing with the customer to learn what type of environment they were driving in when the cruise concern took place. Heavy rain, snow, ice, and fog can cause the ACC system to become unavailable. This should be considered normal operation and no repair is necessary.
- Repair all ABS and ESP DTCs before proceeding with the test.

1. Using the scan tool attempt to clear the DTC.

Can the DTC be cleared?

Yes

- If the DTC can be cleared no further repair is necessary.

No

- If the DTC cannot be cleared and will not go into a stored state replace the ACC Module. Adaptive Speed Control Sensor And Bracket - Removal
- Perform the ACC MODULE VERIFICATION TEST. Adaptive Cruise Control (ACC) Verification Test.