B1669

B1669-REVERSE LAMP CONTROL CIRCUIT OPEN





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

With the transmission gear selector in reverse.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects an open condition in the backup lamp feed circuit.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Shift the transmission into REVERSE.
4. With the scan tool, read DTCs.

Does the scan tool display DTC B1669-REVERSE LAMP CONTROL CIRCUIT OPEN?

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. Body Verification Test.

2. REVERSE LAMP BULBS
1. Turn the ignition off.
2. Inspect the Left and Right Reverse Lamp Bulb Assemblies.

Are the inoperative bulbs OK?

Yes

- Go To 3

No

- Replace the inoperative bulbs.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (L1) BACKUP LAMP FEED CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the TIPM C6 harness connector.
3. Disconnect the Left and Right Tail Lamp Assembly harness connectors.
4. Measure the resistance of the (L1) Backup Lamp Feed circuit.

Are the resistances below 5.0 Ohms?

Yes

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the open in the (L1) Backup Lamp Feed circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.