PINPOINT TEST AN : One Turn Signal Lamp Is Inoperative Or Always On - Expedition: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Overview
One Turn Signal Lamp Is Inoperative Or Always On - Expedition
Refer to Turn Signal/Stop/Hazard Lamps for schematic and connector information.
Normal Operation and Fault Conditions
Refer to Exterior Lighting .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B123A:11 | Left Front Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the LH front turn lamp voltage supply circuit. |
| B123A:15 | Left Front Turn Indicator: Circuit Short To Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the LH front turn lamp voltage supply circuit. |
| B123B:11 | Right Front Turn Indicator: Circuit Short To Ground | A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the RH front turn lamp voltage supply circuit. |
| B123B:15 | Right Front Turn Indicator: Circuit Short To Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the RH front turn lamp voltage supply circuit. |
| U1000:00 | Solid State Driver Protection Actived-Driver Disabled: No Sub Type Information | The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The BCM cannot enable the output until the cause of the short is corrected. ADDRESS all other DTCs first. After the cause of the concern is corrected, CLEAR the DTCs. REPEAT the self-test. |
| U3000:49 | Control Module: Internal Electronic Failure | 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 BCM can withstand. The cause of the excessive current draw MUST be corrected before a new BCM is installed. ADDRESS all other DTCs first. After the cause of the concern is corrected, BCM Hardware Testing . |
Visual Inspection and Diagnostic Pre-checks
- Inspect the turn lamp bulb and make sure it is OK.
- Inspect the BCM fuses 14 (15A) (left turn lamps) and 13 (15A) (right turn lamps).
- Inspect the headlamp assembly, exterior rear view mirror or rear lamp assembly for damage.