Pinpoint Test B : One Or Both Lower Low Beams Is Inoperative - Vehicles With Halogen Headlamps: Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Headlamps/Autolamps for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Exterior Lighting - Overview .
REFER to: Exterior Lighting - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1D00:11 | Left Low Beam: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCMB detects a short to ground from the LH low beam output circuit. |
| B1D00:15 | Left Low Beam: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCMB detects an open from the LH low beam output circuit. |
| B1D01:11 | Right Low Beam: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCMB detects a short to ground from the RH low beam output circuit. |
| B1D01:15 | Right Low Beam: Circuit Short To Battery Or Open | A continuous memory and on-demand DTC that sets when the BCMB detects an open from the RH low beam output circuit. |
| U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | This DTC sets when the BCMB has temporarily shut down the output driver. The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The BCMB cannot enable the output until the cause of the short is corrected, the Diagnostic Trouble Codes (DTCs) have been cleared and a successful self-test is run. |
| U3000:49 | Control Module: Internal Electronic Failure | This DTC sets when the BCMB has permanently shut down the output driver. The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCMB can withstand. CORRECT the cause of the excessive current draw before installing a new BCM. |
Possible Sources
- Wiring, terminals or connectors
- Bulb
- BCMB (Auxiliary Lighting Control Module [ALCM])
Visual Inspection and Diagnostic Pre-checks
- Inspect the headlamp assembly for damage.