B1639

B1639-RIGHT HIGH BEAM CONTROL CIRCUIT OPEN







- When Monitored:
With the Headlamps activated.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects an open in the right high beam control circuit.





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

Does the scan tool read: B1639-RIGHT HIGH 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. RIGHT HIGH BEAM BULB
1. Turn the ignition off.
2. Inspect the Right 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. (L34) RIGHT HIGH BEAM DRIVER CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the TIPM C4 harness connector.
3. Disconnect the Right Headlamp harness connector.
4. Measure the resistance on the (L34) Right High Beam Driver circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (L34) Right High Beam Driver circuit for an open 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.