Manufacturer Code Charts: 100

Adaptive Cruise Control (ACC) DTC Troubleshooting: 100

DTC 100:

CMBS Initial Check Incomplete

NOTE: The CMBS initial check function checks the communication between the ACC unit and the VSA modulator-control unit.

If the CMBS initial check is incomplete, the ACC and CMBS indicators come on. For the CMBS to operate properly, always do the CMBS initial check after replacing the ACC unit or the VSA modulator-control unit.

1. Press the engine start/stop button to select the ON mode, then wait for 10 seconds.

2. Watch the VSA indicator.

Does the VSA indicator come on?

YES -

Go to the VSA system troubleshooting Reading and Clearing Diagnostic Trouble Codes.

NO -

Go to step 3.

3. Check for VSA system DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Are any DTCs indicated?

YES -

Troubleshoot the indicated VSA system DTC(s).�

NO -

Go to step 4.

4. Start the engine.

5. Select CMBS from the DRIVING SUPPORT menu, then enter the MISCELLANEOUS TEST.

6. Do the CMBS brake forced operation.

7. Watch the ACC and CMBS indicators.

Do both indicators come on?

YES -

Go to step 8.

NO -

The system is OK at this time. The CMBS initial check is complete.�

8. Check for ACC system DTCs with the HDS.

Are any DTCs except DTC 100 indicated?

YES -

Troubleshoot the indicated DTC(s).�

NO -

Check for loose or poor connections. If OK, update the ACC unit Programming and Relearning, then recheck. If the ACC unit was already updated, replace the ACC unit Service and Repair.�