Adaptive Cruise Control (ACC)

U0114-00-LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE (FDCM) (DTCM)

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.
Body Control Module (BCM) is configured correctly.

- Set Condition:

The Adaptive Cruise Control (ACC) Module doesn't receive a Final Drive Control Module (FDCM) (DTCM) message over the CAN C BUS circuit for approximately two to five seconds.

Possible Causes:

VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE: Make sure the IOD fuse is installed and the battery voltage is between 10 and 16 volts before proceeding.

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

Is this DTC active?

Yes

- Perform the NO RESPONSE FROM DTCM (DRIVETRAIN CONTROL MODULE) procedure. No Response From DTCM (Drivetrain Control Module)

No

- Perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs