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 the 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*
(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 -- GO TO CAN COMMUNICATION SYSTEM.
A -- Continue to next step.

4. DTC CHECK AND CLEAR*
Refer to DTC Check/Clear Cruise Control System.
NEXT -- Continue to next step.

5. DTC CHECK (OTHER THAN CAN SYSTEM DTC)*

Result:





B -- GO TO DTC CHART.
A -- Continue to next step.

6. PROBLEM SYMPTOM CONFIRMATION

Result:





B -- Go to STEP 9
A -- Continue to next step.

7. SYMPTOM SIMULATION
Refer to Electronic Circuit Inspection Procedure Electronic Circuit Inspection Procedure.
NEXT -- Continue to next step.

8. PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table Problem Symptoms Table.
NEXT -- Continue to next step.

9. CIRCUIT INSPECTION
NEXT -- Continue to next step.

10. TERMINALS OF ECM
Refer to Terminals of ECM Cruise Control System.
NEXT -- Continue to next step.

11. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.

12. REPAIR OR REPLACE
NEXT -- Continue to next step.

13. CONFIRMATION TEST
NEXT -- END