how do I fix a black screen on my GMC Sierra T1XX (2019-Present) backup camera?

GMC Sierra T1XX (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

588 words

Problem Statement

Learn how to diagnose and fix a black screen on the backup camera of your GMC Sierra T1XX (2019-Present). Step-by-step guide with tools and tips.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent shorts.

Symptoms

•Backup camera displays a black screen when in reverse
•No image on the infotainment display
•Camera activation chime may or may not sound
•Error message on the dashboard related to the camera system (if applicable)
•Infotainment system may experience intermittent glitches

Diagnostic Steps

1
Inspect the camera lens for obstructions or dirt that may be blocking the view.
2
Verify that the vehicle is in reverse and the infotainment system is set to display the backup camera.
3
Check the vehicle's fuse box for any blown fuses related to the backup camera system.
4
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the camera system.
5
Inspect the wiring harness and connectors at the camera for damage or loose connections.
6
Test the backup camera's power supply using a multimeter to ensure it is receiving voltage.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Socket set
•Multimeter
•OBD-II scanner

Parts Required

•Backup camera (if replacement is necessary)
•Fuses (if blown)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the camera lens for obstructions or dirt that may be blocking the view.
2
Verify that the vehicle is in reverse and the infotainment system is set to display the backup camera.
3
Check the vehicle's fuse box for any blown fuses related to the backup camera system.
4
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the camera system.
5
Inspect the wiring harness and connectors at the camera for damage or loose connections.
6
Test the backup camera's power supply using a multimeter to ensure it is receiving voltage.

Solution

1. Preparation

Tools Required: Socket set, multimeter, OBD-II scanner
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect Camera Lens

Locate the backup camera mounted above the license plate.
Clean the camera lens with a soft cloth to remove any dirt or debris.
Check for physical damage to the camera.

3. Check Fuses

Open the fuse box located under the dashboard or in the engine compartment.
Locate the fuse for the backup camera (refer to the owner's manual for the exact fuse location).
Remove the fuse and inspect it; replace it if it appears blown. Use a fuse of the same amperage.

4. Inspect Wiring and Connections

Reconnect the negative battery terminal.
Access the wiring harness connected to the camera by removing the trim panel (if necessary).
Inspect for any frayed wires or loose connections. Ensure the connectors are seated properly.

5. Test Power Supply

Using a multimeter, set it to measure DC voltage.
Connect the multimeter probes to the power and ground wires of the camera harness.
With the vehicle in reverse, check for voltage (should be approximately 12V). If there is no voltage, trace the wiring back to the fuse box.

6. Replace Camera (if necessary)

If all previous checks are okay and the issue persists, the backup camera may be faulty.
Remove the camera by unscrewing it from its mounting bracket.
Disconnect the wiring harness and replace with a new camera.
Reconnect everything and secure the camera in place.