B1637

B1637-RIGHT HI BEAM CONTROL CIRCUIT LOW

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

- When Monitored:
With the highbeam headlamps activated.

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





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the Highbeam Headlamps on.
4. With the scan tool read the DTC information.

Does the scan tool read: B1637-RIGHT HI 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. RIGHT HIGH BEAM BULB
1. Turn the ignition off.
2. Inspect the Right High Beam Bulb assembly for a short condition.

Is the inoperative bulb OK?

Yes

- Go To 3

No

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

3. (L34) RIGHT HIGHBEAM OUTPUT CIRCUIT
1. Turn the ignition off.
2. Disconnect the TIPM C3 harness connector.
3. Measure the resistance between ground and the (L34) Right Highbeam Output circuit at the TIPM.

Is the resistance below 5.0 Ohms?

Yes

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

No

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