DTC B1520-13: Auxiliary Fan Relay Control Line - 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 infotainment cooling fan relay circuit for open circuit, high resistance. Repair or replace wiring harness as necessary, clear the DTCs and retest