Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the Scan Tool, clear all TIPM DTC's.
3. Turn the backup lamps on.
4. 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. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
BACKUP LAMP
1. Turn the ignition off.
2. Inspect the backup lamp assembly for a short condition.
  Is the inoperative bulb OK?
  
  Yes
  - Go to Step 3.
  No
  - Replace the inoperative bulb in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
TOTALLY INTEGRATED POWER MODULE
1. Turn the ignition off.
2. Disconnect the TIPM C3 harness connector.
3. Measure the resistance between ground and the (L1) Backup Lamp Control circuit in the TIPM.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Repair the (L1) Backup Lamps Control 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. Refer to MODULE, TOTALLY INTEGRATED POWER (TIPM) .
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .