CMBS Symptom Troubleshooting - CMBS indicator does not go off
CMBS indicator does not go off
  1. Turn the ignition switch to ON (II).
  1. Press and hold the CMBS OFF switch for a second or more to turn off the system.
  1. Watch the CMBS indicator.
Does the CMBS indicator go off?
YES -
The system is OK at this time.■
NO -
Go to Step 4 .
  1. Turn the ignition switch to LOCK (0).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to ON (II).
  1. Check for the adaptive cruise control (ACC) system DTCs with the HDS.
Are any DTCs indicated?
YES -
Troubleshoot the indicated DTC(s).■
NO -
Go to Step 8 .
  1. Start the engine, and wait for 2 seconds.
  1. Watch the CMBS indicator.
Does the CMBS indicator stay off?
YES -
The system is OK at this time.■
NO -
Go to Step 10 .
  1. Stop the engine.
  1. Check for ACC system DTCs with the HDS.
Are any DTCs indicated?
YES -
Troubleshoot the indicated DTC(s).■
NO -
Do the CMBS OFF switch test. If the switch is OK, do the gauge control module self-diagnostic function. ■