Adaptive Cruise Control Module (ACC)

C212A-85-SYSTEM VOLTAGE - SIGNAL ABOVE ALLOWABLE RANGE





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

- When Monitored:
Continuously with the ignition on.

- Set Condition:
The Adaptive Cruise Control (ACC) Module receives a high charging system voltage message over the CAN Bus or detects voltage over 16 volts on the (F943) Fused B(+) circuit.





1. CHECK PCM FOR CHARGING SYSTEM DTC
1. With the scan tool, read the PCM DTCs.

Are there any Charging System DTCs set in the PCM?

Yes

- Perform the Charging System diagnostic procedure. Testing and Inspection.

No

- Go To 2

2. CHECK FOR AN ACTIVE DTC
1. With the scan tool, read the active ACC Module DTCs.

Does the scan tool display this DTC as active?

Yes

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

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the ACC MODULE VERIFICATION TEST. Adaptive Cruise Control (ACC) Verification Test.