DTC B1DEF-13: Pedestrian Waning System Speaker - Circuit Open: Action

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the exterior synthetic sounder speaker circuit for short circuit. Repair the wiring harness as necessary. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
Check the operation of the exterior synthetic sounder speaker. Replace the speaker as necessary
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the problem persists, install a new audio amplifier module as required