1. Check for continuity between the adaptive cruise control (ACC) unit 20P connector No. 20 terminal and gauge control module connector (36P) No. 19 terminal.

Is there continuity?

YES | - | Check for loose or poor connections. If OK, replace the adaptive cruise control (ACC) unit . ■
NO | - | Repair an open in the wire between the adaptive cruise control (ACC) unit and the branch of the F-CAN line (CANL).■