Pinpoint Test 2: Poor Image Quality

PINPOINT TEST 2: POOR IMAGE QUALITY

Normal Operation

With the ignition switch in the RUN position, the video camera receives voltage. For vehicles without navigation, with the gear selector in REVERSE (R) position, a reverse voltage signal is sent to the auto-dimming interior mirror. For vehicles with navigation, with the gear selector in REVERSE (R) position, a reverse signal is sent from the Instrument Cluster (IC) to the Audio Control Module (ACM) over the Medium Speed Controller Area Network (MS-CAN), enabling the system. The video signal from the video camera displays an image on the left portion of the auto-dimming interior mirror (for vehicles without navigation) or displays an image on the ACM (for vehicles with navigation).

Possible Causes
- Wiring, terminals or connectors
- Video camera

Diagnostic Procedure

NOTE:Failure to disconnect the battery when instructed will result in false resistance readings. See Battery Disconnect.