DTC B1102-19: Trailer stop lamp - Circuit current above threshold: Action

WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This DTC may be set by a fault within the trailer.

Refer to the electrical circuit diagrams and check the trailer stop lamp circuit for short circuit to ground, short circuit to power. Clear the DTCs and retest