Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of electrical damage.

VISUAL INSPECTION CHART

Electrical
^ Central junction box Fuse 27(15A)
^ Damaged wiring harness
^ Loose or corroded connectors
^ Parking aid module
^ Fuse junction panel
^ Relays
^ Parking aid sensors
^ Parking aid disable switch and LED
^ Parking aid speaker
^ Reversing lamps

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 scan tool does not power up, refer to the scan tool manual.
5. Carry out the DATA LINK DIAGNOSTICS test. Pinpoint Test PC (Precheck)
If the scan tool responds with:
^ CKT 914, CKT 915 or CKT 70 - ALL ECUS NO RESP/NOT EQUIP, refer to Module Communication Network (Information Bus).
^ NO RESP/NOT EQUIP for parking aid, GO to Pinpoint Test A. Test A: No Communication With The Parking Aid Module (PAM)
^ System passed, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the Parking Aid Module (PAM).
6. If the DTCs retrieved are related to the concern, go to the Parking Aid Diagnostic Trouble Code (DTC) Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
7. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures