B1633

B1633-LEFT HI BEAM CONTROL CIRCUIT LOW





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

- When Monitored:
With the 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 Highbeam Headlamps on.
4. With the scan tool read the DTC information.

Does the scan tool read: B1633-LEFT 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. (L33) LEFT HIGHBEAM OUTPUT CIRCUIT




1. Turn the ignition off.
2. Disconnect the TIPM C5 harness connector.
3. Disconnect the Left Headlamp harness connector.
4. Measure the resistance between ground and the Left Highbeam Output circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (L33) Left Highbeam Output 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.