1. Check for voltage between the adaptive cruise control (ACC) relay 5P connector No. 5 terminal and body ground.

Is there battery voltage?

YES | - | Go to Step 25 .
NO | - | Repair an open in the wire between the No. 29 (7.5 A) fuse in the under-dash fuse/relay box and the adaptive cruise control (ACC) relay.■

1. Turn the ignition switch OFF.

1. Disconnect the 20P connector from the adaptive cruise control (ACC) unit.