B1644

B1644-REAR LEFT TURN CONTROL CIRCUIT HIGH

For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
- Continuously
- Set Condition:
- When the TIPM detects a short to battery on the Control circuit.







Diagnostic Test


1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
Clear all TIPM DTC's
Turn the Left Turn Signal on.
With the scan tool, read DTC's.
Does the scan tool read: B1644-REAR LEFT TURN 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 BODY VERIFICATION TEST - VER 1.Body Verification Test




2. LEFT REAR TURN SIGNAL LAMP
Turn the ignition off.
Inspect the Left Rear Turn Signal Lamp assembly for an open condition.
Is the inoperative bulb OK?

Yes


- Go To 3


No


- Replace the inoperative bulb.
- Perform the BODY VERIFICATION TEST - VER 1.Body Verification Test




3. TOTALLY INTEGRATED POWER MODULE
Turn the ignition off.
Disconnect the TIPM C3 connector.
Measure the voltage between (L63) Rear Left Turn Signal Control circuit and ground.
Is there any voltage present?

Yes


- Repair the (L63) Rear Left Turn Signal Control circuit for an open condition.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


No


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