ACC Symptom Troubleshooting - Adaptive cruise control (ACC) indicator (orange) does not go off
Adaptive cruise control (ACC) indicator (orange) does not go off
  1. Start the engine, and wait for 2 seconds.
  1. Watch the ACC indicator.
Does the ACC indicator go off?
YES -
Intermittent failure. The system is OK at this time. Check for loose or poor connections.■
NO -
Go to Step 3 .
  1. Turn the ignition switch to LOCK (0).
  1. Check for ACC system DTCs with the HDS.
Is any DTC indicated?
YES -
Troubleshoot the indicated DTC.■
NO -
Go to Step 5 .
  1. Check for PGM-FI system DTCs with the HDS.
Is DTC U0104 indicated?
YES -
Troubleshoot DTC U0104.
NO -
Go to Step 6 .
  1. Check for VSA system DTCs with the HDS.
Is DTC 86 indicated?
YES -
Troubleshoot DTC 86.
NO -
Go to Step 7 .
  1. Do the gauge control module self-diagnostic function.
Is the gauge control module OK?
YES -
Go to the ACC system troubleshooting. If OK, update the ACC unit, then recheck. If the ACC unit was already updated, replace the ACC unit. ■
NO -
Substitute a known-good gauge control module and recheck. If the problem goes away, replace the original gauge control module. ■