Pinpoint Test A : The Lane Keeping System Does Not Turn On Or Activate: 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 Vehicle Emergency Messaging System for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Lane Keeping System - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B13A6:14 | Lane Departure Warning (LDW) Switch Input: Circuit Short To Ground or Open | An on-demand and continuous memory DTC that sets in the IPMA if the IPMA detects the lane keeping system switch has been pressed for more than 200 milliseconds during the self-test or 1 second during normal operation. |
Possible Causes
- IPMA overheating condition
- Communication network concern
- Dirty, scratched or obstructed windshield and/or camera
- Lane keeping system switch
- SECM concern
- SCCM concern
- SASM concern
- BCM concern
- PCM concern
- RCM concern
- IPC concern
- CCM concern
- IPMA (integral to the interior rear view mirror)
Visual Inspection and Diagnostic Pre-Checks
- Certain lane keeping system concerns can be caused by the IPMA being to cold or overheating due to heavy sunload. Prior to diagnosing a lane keeping system concern, allow the vehicle to warm up or remove the vehicle from direct sunlight. RECHECK after 10 minutes.