B1668

B1668-REVERSE LAMP CONTROL CIRCUIT HIGH






For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

With the ignition on.

- Set Condition:

The TIPM detects an open condition.






Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

Clear all TIPM DTC's

Shift the transmission into reverse.

With the scan tool, read DTC's.

Does the scan tool read: B1668-REVERSE LAMP CONTROL CIRCUIT HIGH?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. (L1) BACKUP LAMP FEED CIRCUIT SHORT TO VOLTAGE

Turn the ignition off.

Disconnect the Left and Right Backup Lamp harness connectors.

Disconnect the TIPM C8 harness connector.

Turn the ignition on.

Measure the voltage on the (L1) Backup Lamp Feed circuit.

Is the voltage greater than 10.0 volts?

Yes

- Repair the (L1) Backup Lamp Feed circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test