Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2050 (OBJECT DETECTION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESREAR VISION CAMERA SYSTEM MALFUNCTION (UVC WITHOUT NAVIGATIONAL RADIO)CIRCUIT/SYSTEM TESTING
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Circuit/System Testing
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Rearview Camera System Always On
- Ignition OFF, disconnect the harness connector X1 at the rearview camera.
- Engine running, transmission in PARK, verify a test lamp does not illuminate between the control circuit X1 terminal 3 and ground.
- If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, refer to Backup Lamps Malfunction (Automatic Transmission) or Backup Lamps Malfunction (Manual Transmission) .
- If all circuits test normal, test or replace the rearview camera.
Rearview Camera System Does Not Display
- Ignition OFF, disconnect the harness connectors X1 and X2 at the rearview camera.
- Test for less than 10 Ξ© between the ground circuit X1 terminal 2 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Engine running, verify a test lamp illuminates between the ignition circuit X2 terminal 4 and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
- Park brake applied, transmission in REVERSE, engine running, test for B+ between the B+ circuit X1 terminal 3 and ground.
- If less than the specified value, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
- Ignition OFF, disconnect the harness connector at the inside rearview mirror.
- Test for less than 10 Ξ© between the ground circuit terminal 8 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Park brake applied, transmission in REVERSE, engine running, test for B+ between the control terminal 9 and ground.
- If less than the specified value, test the control circuit for an open/high resistance. If the circuit tests normal, refer to Backup Lamps Malfunction (Automatic Transmission) or Backup Lamps Malfunction (Manual Transmission) .
- Engine running, test for less than 1 V between the following signal circuit terminals at the rearview camera harness connector and ground:
- Signal (+) circuit X2 terminal 1
- Signal (-) circuit X1 terminal 1
- If greater than the specified range, test the signal circuit for a short to voltage.
- Test for infinite resistance between the following circuit terminals at the rearview camera harness connector and ground:
- Signal (+) circuit X2 terminal 1
- Signal (-) circuit X1 terminal 1
- If not the specified value, test the circuit for a short to ground.
- Test for less than 2 Ξ© between the signal (+) circuit X2 terminal 1 at the rearview camera harness connector and the signal (+) circuit terminal 6 at the inside rearview mirror harness connector.
- If greater than the specified range, test the signal circuit for an open/high resistance.
- Test for less than 2 Ξ© between the signal (-) circuit X1 terminal 1 at the rearview camera harness connector and the signal (-) circuit terminal 7 at the inside rearview mirror harness connector.
- If greater than the specified range, test the signal circuit for an open/high resistance.
- If all circuits test normal, test or replace the rearview camera.
- Engine running, transmission in REVERSE, verify a clear rear vision image is displayed on the inside rearview mirror.
- If a clear rear vision image is not displayed, replace the inside rearview mirror.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.