Circuit/System Testing
WARNING: This page is about a different car, the 2010 GMC Terrain and 2010 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the rearview camera.
- Test for less than 5 Ω between the ground circuit terminal 5 and ground.
- If greater than the specified value, test the ground circuit for an open/high resistance.
- Ignition ON, verify a test lamp illuminates between the ignition circuit terminal 6 and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
- Engine running, park brake applied, transmission in REVERSE, test for greater than 11 V between the control circuit terminal 3 and ground.
- If less than the specified value, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
- Ignition OFF, disconnect the harness connector at the A10 Inside Rearview Mirror.
- Test for less than 5 Ω between the ground circuit terminal 8 and ground.
- If greater than the specified value, test the ground circuit for an open/high resistance.
- Ignition ON, verify a test lamp illuminates between the ignition circuit terminal 13 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, test for greater than 11 V between the control circuit terminal 9 and ground.
- If less than the specified value, test the control circuit for an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
- Test for less than 0.3 V between the following signal circuit terminals at the rearview camera harness connector and ground:
- Signal (+) circuit terminal 1
- Signal (-) circuit terminal 4
- If greater than the specified value, test the signal circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the following circuit terminals at the rearview camera harness connector and ground:
- Signal (+) circuit terminal 1
- Signal (-) circuit terminal 4
- If not the specified value, test the circuit for a short to ground.
- Test for less than 5 Ω between the shield ground circuit terminal 2 and ground.
- If greater than the specified value, test the shield ground circuit for an open/high resistance.
- Test for less than 5 Ω between the signal (+) circuit terminal 1 at the rearview camera harness connector and the signal (+) circuit terminal 6 at the A10 Inside Rearview Mirror harness connector.
- If greater than the specified value, test the signal circuit for an open/high resistance.
- Test for less than 5 Ω between the signal (-) circuit terminal 4 at the rearview camera harness connector and the signal (-) circuit terminal 7 at the A10 Inside Rearview Mirror harness connector.
- If greater than the specified value, test the signal circuit for an open/high resistance.
- If all circuits test normal, connect the harness connector to the A10 Inside Rearview Mirror and replace the rearview camera.
- Ignition ON, 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 A10 Inside Rearview Mirror.