Adaptive Cruise Control Symptom Troubleshooting - Adaptive cruise control (ACC) activation indicator (green) does not come on

Adaptive cruise control (ACC) activation indicator (green) does not come on

1. Do the gauge control module self-diagnostic function.

Is the gauge control module OK?

YES | - | Go to Step 2 .
NO | - | Substitute a known-good gauge control module and recheck. If the problem goes away, replace the original gauge control module. ■

1. Test the adaptive cruise control (ACC) combination switch.

Is the switch OK?

YES | - | Go to Step 3 .
NO | - | Replace the adaptive cruise control (ACC) combination switch. ■

1. Turn the ignition switch ON (II).

1. Check for voltage between the adaptive cruise control (ACC) combination switch 20P connector No. 13 terminal and body ground.

Is there about 5 V?

YES | - | Repair an open in the wire between the adaptive cruise control (ACC) combination switch and body ground.■
NO | - | Repair an open in the wire between the adaptive cruise control (ACC) combination switch and the gauge control module. ■