How To Proceed With Troubleshooting

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

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