B1635

B1635-LEFT HI BEAM CONTROL CIRCUIT OPEN





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

- When Monitored:
With the Headlamps active.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects an open in the (L33) Left High Beam Driver circuit.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the High Beam Lamps on.
4. With the scan tool, read DTCs.

Does the scan tool display DTC B1635-LEFT HI BEAM 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. LEFT HIGH BEAM BULB
1. Turn the ignition off.
2. Inspect the Left High Beam 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. (L33) HIGH BEAM CONTROL CIRCUIT OPEN




1. Disconnect the Left Headlamp Lamp harness connector.
2. Disconnect the TIPM C4 harness connector.
3. Measure the resistance of the (L33) Left High Beam Driver circuit between the Left Headlamp Lamp harness connector and the TIPM C4 harness connector.

Is the resistance above 5.0 Ohms?

Yes

- Repair the open in the (L33) Left High Beam Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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