Check the No. 29 (7.5 A) fuse in the under-dash fuse/relay box. Is the fuse OK?
YES | - | Go to Step 2 .
NO | - | Check for a short in the wire between the No. 29 (7.5 A) fuse socket and the adaptive cruise control (ACC) unit. If OK, replace the fuse.■
Disconnect the 20P connector from the adaptive cruise control (ACC) unit. Turn the ignition switch ON (II). Check for voltage between the adaptive cruise control (ACC) unit 20P connector No. 2 terminal and body ground. Is there battery voltage?
YES | - | Go to Step 5 .
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) unit. If the wire is OK, replace the under-dash fuse/relay box.■
Turn the ignition switch OFF. |