Inspection and Verification

Inspection and Verification
1. Verify the customer concern by operating the EPB system.
2. Visually inspect for obvious signs of mechanical or electrical damage. Refer to the chart:

Visual Inspection Chart:

Visual Inspection Chart

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the diagnostic tool does not power up, refer to the diagnostic tool manual.
5. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
^ SCP, ISO or UBP circuit faults; all electronic control units no response/not equipped, refer to Information Bus (Module Communications Network).
^ No response/not equipped for the EPB module, GO to Pinpoint Test A. Test A: DTC B1317/B1318- - Battery Voltage High/Low
^ System passed, retrieve and record the continuous DTCs and carry out self-test diagnostics for the EPB module.
6. If the DTCs retrieved are related to the concern, go to the Electronic Parking Brake (EPB) System Diagnostic Trouble Code (DTC) Index. Diagnostic Trouble Code Tests and Associated Procedures
7. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics. Diagnosis By Symptom