1. Check for continuity between the adaptive cruise control (ACC) unit 20P connector No. 20 terminal and the VSA modulator-control unit 47P connector No. 30 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).■