Diagnostic Test
- 1) INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all TIPM DTC's.
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 Step 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 - VER 1 .
- 2) (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 - VER 1 .
No
- Replace the Totally Integrated Power Module (TIPM) in accordance with the service information.
- Perform the BODY VERIFICATION TEST - VER 1 .