Adaptive Cruise Control Module (ACC)

U0146-00-LOST COMMUNICATION WITH CENTRAL GATEWAY

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

- When Monitored:
Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

- Set Condition:
Bus messages not received from the Central Gateway for approximately two to five seconds.





VERIFY DTC IS ACTIVE

NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding.

1. Turn the ignition on.
2. With the scan tool, read active DTCs.

Is this DTC active?

Yes

- U0141 and perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure.

No

- Stored Lost Communication DTCs and perform the Stored Lost Communication DTCs diagnostic procedure.