Initial Inspection and Diagnostic Overview

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

VISUAL INSPECTION CHART

Electrical
^ Fuse junction panel Fuse 6 (5A)
^ Circuitry
^ Parking Aid Module (PAM)
^ Relays
^ Parking aid sensors
^ Parking aid switch
^ Parking aid disabled LED
^ Parking aid speaker

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. If the scan tool responds with:
^ CKT 914, CKT 915 or CKT 70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network.
^ NO RESP/NOT EQUIP for PAM, 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 (PAM) module.
6. If the DTCs retrieved are related to the concern, go to the PAM Diagnostic Trouble Code (DTC) Index. 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