Pinpoint Test I: Poor Image Quality

Parking Aid - Video

Pinpoint Test I: Poor Image Quality

Normal Operation

For vehicles without navigation, with the gear selector in REVERSE (R) position, a reverse voltage signal is sent to the auto-dimming interior mirror and rear video camera supplying power to the system. The video camera signal is sent to the auto-dimming interior mirror. The video signal from the video camera displays an image on the LH side of the auto-dimming interior mirror.

For vehicles with navigation, with the gear selector in the REVERSE (R) position, a reverse voltage signal is sent to the video camera supplying power to the camera. A reverse signal is also sent from the Instrument Panel Cluster (IPC) 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 Front Display Interface Module (FDIM).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Video camera

PINPOINT TEST I : POOR IMAGE QUALITY

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

I1 CHECK THE VIDEO CAMERA GROUND CIRCUIT FOR AN OPEN

- Ignition OFF.

- Disconnect: Negative Battery Cable.

- Disconnect: Video Camera C4357 Or C4360.

- For vehicles with a spoiler mounted reverse camera, measure the resistance between the video camera C4357-3, circuit GD149 (BK/GY), harness side and ground.





- For vehicles with a decklid mounted reverse camera, measure the resistance between the video camera C4360-5, circuit GD149 (BK/GY), harness side and ground.





Is the resistance less than 5 ohms?

Yes
GO to I2.

No
REPAIR the circuit. TEST the system for normal operation.

I2 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO GROUND WITH THE AUTO-DIMMING INTERIOR MIRROR (WITHOUT NAVIGATION) OR THE FDIM (Front Display Interface Module) (WITH NAVIGATION) DISCONNECTED

- Disconnect: Auto-Dimming Interior Mirror C9039 (Without Navigation) or FDIM (Front Display Interface Module) C2123 (With Navigation).

- For vehicles with a spoiler mounted reverse camera, measure the resistance between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and ground; and between the video camera C4357-7, circuit RMP19 (BN/VT), harness side and ground.





- For vehicles with a decklid mounted reverse camera, measure the resistance between the video camera C4360-4, circuit VMP19 (WH/GN), harness side and ground; and between the video camera C4360-3, circuit RMP19 (BN/VT), harness side and ground.





Are the resistances greater than 10,000 ohms?

Yes
GO to I3.

No
REPAIR the circuit in question. TEST the system for normal operation.

I3 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VIDEO SHIELD

- For vehicles with a spoiler mounted reverse camera, measure the resistance between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and the video camera C4357-4, circuit DMP19 (BK), harness side.





- For vehicles with a spoiler mounted reverse camera, measure the resistance between the video camera C4357-7, circuit RMP19 (BN/VT), harness side and the video camera C4357-4, circuit DMP19 (BK), harness side.





- For vehicles with a decklid mounted reverse camera, measure the resistance between the video camera C4360-4, circuit VMP19 (WH/GN), harness side and the video camera C4360-6, circuit DMP19 (BK), harness side.





- For vehicles with a decklid mounted reverse camera, measure the resistance between the video camera C4360-3, circuit RMP19 (BN/VT), harness side and the video camera C4360-6, circuit DMP19 (BK), harness side.





Is the resistance greater than 10,000 ohms?

Yes
GO to I4.

No
REPAIR the circuit in question. TEST the system for normal operation.

I4 CHECK THE VIDEO SIGNAL CIRCUITS FOR AN OPEN

- Ignition OFF.

- Disconnect: FDIM (Front Display Interface Module) (With Navigation) C2123 or Auto-Dimming Interior Mirror (Without Navigation) C9039.

- For vehicles with a spoiler mounted reverse camera, connect a fused jumper wire between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and the video camera C4357-7, circuit RMP19 (BN/VT), harness side.





- For vehicles with a decklid mounted reverse camera, connect a fused jumper wire between the video camera C4360-4, circuit VMP19 (WH/GN), harness side and the video camera C4360-3, circuit RMP19 (BN/VT), harness side.





- For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the auto-dimming interior mirror C9039-16, circuit RMP19 (BN/VT), harness side.





- For vehicles with navigation, measure the resistance between the FDIM (Front Display Interface Module) C2123-3, circuit VMP19 (WH/GN), harness side and the FDIM (Front Display Interface Module) C2123-9, circuit RMP19 (BN/VT), harness side.





Are the resistances less than 5 ohms?

Yes
REMOVE the jumper wire. CARRY OUT the video camera component test Component Tests and General Diagnostics. If the camera is inoperative, INSTALL a new video camera. REFER to Video Camera . TEST the system for normal operation.

No
REMOVE the jumper wire. GO to I5.

I5 CHECK THE VIDEO SIGNAL CIRCUIT (+) FOR AN OPEN

- For vehicles without navigation with a spoiler mounted reverse camera, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the video camera C4357-6, circuit VMP19 (WH/GN), harness side.





- For vehicles with navigation with a spoiler mounted reverse camera, measure the resistance between the FDIM (Front Display Interface Module) C2123-3, circuit VMP19 (WH/GN), harness side and the video camera C4357-6, circuit VMP19 (WH/GN), harness side.





- For vehicles without navigation with a decklid mounted reverse camera, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the video camera C4360-4, circuit VMP19 (WH/GN), harness side.





- For vehicles with navigation with a decklid mounted reverse camera, measure the resistance between the FDIM (Front Display Interface Module) C2123-3, circuit VMP19 (WH/GN), harness side and the video camera C4360-4, circuit VMP19 (WH/GN), harness side.





Is the resistance less than 5 ohms?

Yes
REPAIR circuit RMP19 (BN/VT). TEST the system for normal operation.

No
REPAIR circuit VMP19 (WH/GN). TEST the system for normal operation.