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Diagnosis And Testing - Rear Camera

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The hardwired circuits of the Rear View Camera (RVC) and those between the RVC and the Rear View Mirror may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the RVC or the Rear View Mirror. The most reliable, efficient and accurate means to diagnose the electronic controls and communication related to Rear View Mirror operation, as well as the retrieval or erasure of a DTC requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

NOTE:

Be certain to confirm both of the following prior to attempting any further diagnosis or testing of the RVC. Use a diagnostic scan tool to confirm the rear view camera is setup in the vehicle configuration.

CONDITION POSSIBLE CAUSES CORRECTION
NO VIDEO DISPLAY IN Rear View Mirror - DOES NOT DISPLAY CHECK ENTIRE SURROUNDINGS  MESSAGE BRIEFLY AFTER SHIFTING INTO REVERSE 1. Incorrect BCM software. 1. Check to be certain that the BCM has the latest software update installed. Install the BCM software update if required.
2. Ineffective Rear View Mirror. 2. Test and replace the Rear View Mirror if required.
3. Ineffective Rear View Mirror ground circuit. 3. Check for loose or damaged wiring connections at the Rear View Mirror. Test and repair the open Rear View Mirror ground circuit if required.
4. Ineffective Rear View Mirror feed circuit. 4. Check for loose or damaged wiring connections at the Rear View Mirror. Test and repair the open Rear View Mirror feed circuit if required.
5. Ineffective Rear View Mirror inputs or outputs. 5. Use a diagnostic scan tool to test the Rear View Mirror inputs and outputs including those received over the CAN data bus. Refer to the appropriate diagnostic information.
6. Ineffective Rear View Mirror. 6. Use a diagnostic scan tool to test the Rear View Mirror. Refer to the appropriate diagnostic information.
NO CAMERA IMAGE IN Rear View Mirror AND NO BACKUP LAMPS IN REVERSE 1. Backup lamps inoperative. 1. Test and repair the open backup lamp switch output circuit between the right and left tail lamps if required.
2. Both backup lamps inoperative. 2. Test and repair the open backup lamp switch output circuit between the BODY CONTROL MODULE (BCM) and the tail lamps if required.
3. Ineffective BCM inputs or outputs. 3. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information.
NO CAMERA IMAGE IN Rear View Mirror - DOES DISPLAY CHECK ENTIRE SURROUNDINGS  MESSAGE BRIEFLY AFTER SHIFTING INTO REVERSE AND BACKUP LAMPS DO OPERATE 1. Ineffective camera ground circuit. 1. Check for loose or damaged wiring connections at the camera, Tailgate light bar and Tailgate. Test and repair the open camera ground circuit if required.
2. Ineffective camera feed (backup lamp switch output) circuit. 2. Check for loose or damaged wiring connections at the camera, Tailgate light bar and upper Tailgate opening header. Test and repair the open camera feed (backup lamp switch output) circuit if required.
3. Ineffective camera shield circuit. 3. Check for loose or damaged wiring connections at the camera, Tailgate light bar, upper Tailgate opening header, right cowl side inner panel and Rear View Mirror. Test and repair the open or shorted camera shield circuit if required.
4. Ineffective camera return circuit. 4. Check for loose or damaged wiring connections at the camera, Tailgate light bar, upper Tailgate opening header, right cowl side inner panel and Rear View Mirror. Test and repair the open or shorted camera feed circuit if required.
5. Ineffective camera signal circuit. 5. Check for loose or damaged wiring connections at the camera, Tailgate light bar, upper Tailgate opening header, right cowl side inner panel and Rear View Mirror. Test and repair the open or shorted camera signal circuit if required.
6. Ineffective camera. 6. Replace the ineffective camera if required.
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