Circuit/System Verification

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.

Verify P17 Info Display Module displays infotainment system information properly.
- If infotainment system information does not display properly
  Refer to Symptoms - Entertainment .
- Go to next step: If infotainment system information displays properly
Ignition ON.
Verify that DTC B2545 is not set.
- If the DTC is set
  Refer to DTC B2545 .
- Go to next step: If the DTC is not set
Verify the rearview camera there is no debris on the lens and that the bezel or bezel seal is not damaged.
- If debris are found on the lens
  Clean the lens using water and a soft cloth. If the lens, bezel, or bezel seal are damaged, replace as necessary.
- Go to next step: If no debris on the lens
Engine running, parking brake applied, transmission in REVERSE.
Verify the backup lamps are On.
- If the backup lamps are not ON
  Refer to Backup Lamps Malfunction .
- Go to next step: If the backup lamps are ON
Engine running, parking brake applied, transmission in REVERSE.

NOTE:

A poor quality image is an image that has flickering, blinking, excessively blue/yellow hue, and/or fog/haze such that it obstructs the driver's view out the rear of the vehicle.

Verify a clear rear vision image is displayed on the radio.
- If a clear image is not displayed
  Refer to Circuit/System Testing.
- Go to next step: If a clear image is displayed
All OK.