How to Troubleshoot the CMBS

CMBS Indicator
If the system is OK, the CMBS indicator goes off 2 seconds after turning the ignition switch to ON (II). The CMBS indicator comes on when the adaptive cruise control (ACC) unit detects a problem in the system.
NOTE:
  • The CMBS indicator only indicates its system problems.
  • The CMBS works with related systems such as the VSA system. If these related systems have a problem, the CMBS does not operate. In this case, the CMBS indicator and the related system indicator come on.
When a problem is detected by the self-diagnostic function, the CMBS stops operating, turns on the CMBS indicator, indicates the problem on the MID, and stores the DTC.