Pinpoint Test E : Trailer Assist Lamp Is Inoperative Or Always On: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Wiring Diagram Parking Aid for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Parking Aid - System Operation and Component Description .
BCM DTC Fault Trigger Conditions
| DTC | Description | Action |
|---|---|---|
| B153E:01 | Trailer Hitch Light Output: General Electrical Failure | A continuous and on-demand DTC that sets in the BCM when an internal electrical failure is detected from the trailer assist lamp. |
| B153E:08 | Trailer Hitch Light Output: Bus Signal / Message Failure | A continuous and on-demand DTC that sets in the BCM when there is a LIN communication fault from the trailer assist lamp. |
| B153E:49 | Trailer Hitch Light Output: Internal Electronic Failure | A continuous and on-demand DTC that sets in the BCM when an internal electronic fault is detected in the trailer assist lamp. |
Possible Causes
- Wiring, terminals or connectors
- Trailer assist lamp
- DC/DC concern
- GWM concern
- BCM concern