How to proceed with troubleshooting

• Use these procedures to troubleshoot the cruise control system.
• *: Use the intelligent tester.

1. Vehicle brought to workshop

2. Inspect battery voltage

If the voltage is below 11 v, recharge or replace the battery before proceeding.

1. 1
   Check communication function of can communication system*
2. 2
   Use the intelligent tester (with can vim) to check if the can communication system is functioning normally.

Result:

4. Check indicator light

1. 1
   Check dtc*
2. 2
   Check for a dtc and note any codes that are output.
3. 3
   Delete the dtc.
4. 4
   Recheck for dtcs, and try to prompt the dtc by simulating the original activity that the dtc suggests.

Result

1. 1
   Overall analysis and troubleshooting*
2. 2
   Terminals of ecm (see page cc-13)
3. 3
   Data list / active test (see page cc-17 )

   

8. Repair or replace

9. Confirmation test