Lamps/Lighting - Exterior

900D-LEFT HIGH BEAM CONTROL CIRCUIT HIGH-BCM





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
- With the Headlamps activated.
- Set Condition:
- When the BCM detects a HIGH condition.





Diagnostic Test

1. INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all BCM DTC's.
Turn the Headlamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: 900D-LEFT HIGH BEAM CONTROL CIRCUIT HIGH-BCM?

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 - VER 1.Verification Tests


2. LEFT HIGH BEAM BULB
Turn the ignition off.
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 - VER 1. Verification Tests

3. HIGH BEAM CONTROL CIRCUIT




Turn the ignition off.
Disconnect the BCM C7 harness connector.
Measure the resistance of the High Beam Control circuit.
Is the resistance above 5.0 ohms?

Yes

- Repair the High Beam Control circuit for an open condition.
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Replace the Body Control Module (BCM).
- Perform the BODY VERIFICATION TEST - VER 1. Verification Tests