B1637

B1637-RIGHT HIGH BEAM CONTROL CIRCUIT LOW





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

- When Monitored:
With the High Beam Headlamps activated.

- Set Condition:
When the TIPM detects a LOW condition.





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 the DTC information.

Does the scan tool read: B1637-RIGHT HIGH BEAM CONTROL CIRCUIT LOW?

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. (L34) RIGHT HIGH BEAM DRIVER CIRCUIT




1. Turn the ignition off.
2. Disconnect the TIPM C5 harness connector.
3. Disconnect the Right Headlamp harness connector.
4. Measure the resistance between ground and the Right High Beam Driver circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (L34) Right High Beam Driver circuit for a short to ground condition.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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