B1641

B1641-FRONT RIGHT TURN LAMP CONTROL CIRCUIT OPEN





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

- When Monitored:
With the Turn Signals active.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects an open condition in the (L160) Right Front Turn Signal Control circuit for more than five seconds.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the Right Turn Signals on.
4. With the scan tool, read DTCs.

Does the scan tool display B1641-FRONT RIGHT TURN LAMP CONTROL CIRCUIT OPEN?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK THE RIGHT FRONT PARK/TURN LAMP BULB
1. Turn the ignition off.
2. Inspect the Right Front Park/Turn Lamp Bulb Assembly.

Is the inoperative bulb OK?

Yes

- Go To 3

No

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

3. CHECK THE (L160) RIGHT FRONT TURN SIGNAL CONTROL CIRCUIT FOR AN OPEN




1. Disconnect the TIPM C4 harness connector.
2. Disconnect the Right Front Park/Turn Lamp harness connector.
3. Measure the resistance of the (L160) Right Front Turn Signal Control circuit between the TIPM C4 harness connector and the Right Front Park/Turn Lamp harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Go To 4

No

- Repair the open in the (L160) Right Front Turn Signal Control circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE (Z904) GROUND CIRCUIT FOR AN OPEN




1. Using a 12-volt test light connected to 12-volts, check the (Z904) Ground circuit.

Does the test light illuminate brightly?

Yes

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

No

- Repair the open in the (Z904) Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.