DTC B151F-19: Auxiliary Cooling Fan - 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.

Refer to the electrical circuit diagrams and check the rear auxiliary cooling fan circuit for short circuit to ground, short circuit to power. Repair the wiring harness as necessary, clear the Diagnostic Trouble Code(s) and retest
Refer to the relevant article of the repair information and test the battery and charging system