How To Proceed With Troubleshooting

PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the electric parking brake 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, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system.

Result





B -- PROCEED TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK DTC AND FREEZE FRAME DATA*

NEXT -- Continue to next step.

5. CLEAR DTC AND FREEZE FRAME DATA*

NEXT -- Continue to next step.

6. PROBLEM SYMPTOM CONFIRMATION

NEXT -- Continue to next step.

7. DTC CHECK AND CLEAR*

NEXT -- Continue to next step.

8. PROBLEM SYMPTOM CONFIRMATION

Result





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

9. SYMPTOM SIMULATION

NEXT -- Continue to next step.

10. CHECK FOR DTC (OTHER THAN CAN COMMUNICATION SYSTEM DTC)*

Result





B -- GO TO STEP 12
A -- Continue to next step.

11. PROBLEM SYMPTOMS TABLE

NEXT -- GO TO STEP 13

12. DTC CHART

NEXT -- Continue to next step.

13. CIRCUIT INSPECTION*

NEXT -- Continue to next step.

14. IDENTIFICATION OF PROBLEM

NEXT -- Continue to next step.

15. REPAIR OR REPLACE

NEXT -- Continue to next step.

16. CONFIRMATION TEST*

NEXT -- END