PINPOINT TEST AI : The Trailer Parking Lamps Are Inoperative Or Always On: 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

The Trailer Parking Lamps Are Inoperative Or Always On

Refer to Trailer/Camper Adapter for schematic and connector information.

Normal Operation and Fault Conditions

Refer to Exterior Lighting .

Visual Inspection and Diagnostic Pre-checks

Inspect the BJB fuse 28 (25A).
Inspect the vehicle parking lamps for correct operation.
Inspect the trailer tow connector for damage.