How to Proceed with Troubleshooting

CRUISE CONTROL: CRUISE CONTROL SYSTEM: 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. INSPECT BATTERY VOLTAGE

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.

NEXT -- Continue to next step.

3. PROBLEM SYMPTOM CONFIRMATION

NEXT -- Continue to next step.

4. CHECK CAN COMMUNICATION SYSTEM*

Refer to PRECAUTION 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 -- PROCEED TO "CAN COMMUNICATION SYSTEM" CAN Communication System
A -- Continue to next step.

5. DTC CHECK AND CLEAR*

Refer to DTC CHECK / CLEAR Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

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

Result:





A -- GO TO STEP 8
B -- Continue to next step.

7. DTC CHART

Refer to DIAGNOSTIC TROUBLE CODE CHART Cruise Control System.

NEXT -- GO TO STEP 11

8. PROBLEM SYMPTOM CONFIRMATION

Result:





A -- GO TO STEP 10
B -- Continue to next step.

9. SYMPTOM SIMULATION

Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE Electronic Circuit Inspection Procedure.

NEXT -- GO TO STEP 8

10. PROBLEM SYMPTOMS TABLE

Refer to the PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures.

NEXT -- Continue to next step.

11. CIRCUIT INSPECTION

NEXT -- Continue to next step.

12. TERMINALS OF ECM

Refer to TERMINALS OF ECM Pinout Values and Diagnostic Parameters.

NEXT -- Continue to next step.

13. IDENTIFICATION OF PROBLEM

NEXT -- Continue to next step.

14. REPAIR OR REPLACE

NEXT -- Continue to next step.

15. CONFIRMATION TEST

NEXT -- END