How To Proceed With Troubleshooting

CRUISE CONTROL: CRUISE CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use the following procedures to troubleshoot the cruise control system.
- *: Use Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. PROBLEM SYMPTOM CONFIRMATION
NEXT -- Continue to next step.
3. CHECK CAN COMMUNICATION SYSTEM*
Refer to PRECAUTION.
(a) Check for output DTCs.
Result:





HINT: The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

B -- PROCEED TO "CAN COMMUNICATION SYSTEM"
A -- Continue to next step.
4. DTC CHECK AND CLEAR*
Refer to DTC CHECK / CLEAR Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
5. DTC CHECK (OTHER THAN CAN SYSTEM DTC)*
Result:






A -- GO TO STEP 8
B -- Continue to next step.
6. DTC CHART
Refer to DIAGNOSTIC TROUBLE CODE CHART.
NEXT -- GO TO STEP 11
7. PROBLEM SYMPTOM CONFIRMATION
Result:






A -- GO TO STEP 10
B -- Continue to next step.
8. SYMPTOM SIMULATION
Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE.
NEXT -- GO TO STEP 8
9. PROBLEM SYMPTOMS TABLE
Refer to PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures.
NEXT -- Continue to next step.
10. CIRCUIT INSPECTION
NEXT -- Continue to next step.
11. TERMINALS OF ECM
Refer to TERMINALS OF ECM Pinout Values and Diagnostic Parameters.
NEXT -- Continue to next step.
12. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.
13. REPAIR OR REPLACE
NEXT -- Continue to next step.
14. CONFIRMATION TEST
NEXT -- END