Diagnostic Test
- INTERMITTENT CONDITION
- Turn the ignition on.
- With the scan tool, clear all TIPM DTCs.
- Shift the transmission into reverse.
- With the scan tool read the DTC information.
Does the scan tool read: B1667-REVERSE LAMP CONTROL CIRCUIT LOW?
Yes
- Go To 2
No
- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- (L1) BACK-UP LAMP FEED CIRCUIT SHORT TO GROUND
- Turn the ignition off.
- Disconnect the TIPM C8 connector.
- Measure the resistance between ground and the (L1) Back-up Lamp circuit.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (L1) Back-up Lamp circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Replace the Totally Integrated Power Module (TIPM) in accordance with the service information.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .