B1633-LEFT HI BEAM CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
- With the Headlamps activated.
- Set Condition:
- When the FCM detects a LOW condition.
| Possible Causes |
| (L33) LEFT HIGHBEAM OUTPUT CIRCUIT |
| FRONT CONTROL MODULE |
Diagnostic Test
1.INTERMITTENT CONDITIONDoes 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 - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
2.(L33) 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 - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace the Front Control Module (FCM) in accordance with the service information.
- Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)