DTC B1D9F-13: Engine Speed Input - 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.

NOTE: When checking the audio amplifier crank signal input circuit for open circuit, check the signal directly at the crank signal input connection with the engine on

Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the audio amplifier module crank signal input circuit for open circuit, high resistance. Repair the wiring harness as necessary. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
Using the Jaguar Land Rover approved diagnostic equipment, check the power mode sent to audio DTC DESCRIPTION POSSIBLE CAUSES ACTION amplifier module from the infotainment master controller. If the audio amplifier module power mode is correct check the communication between the infotainment master controller and the audio amplifier module
Use an oscilloscope to examine the signals from the Powertrain Control Module (PCM). Using the Jaguar Land Rover approved diagnostic equipment, check for related PCM DTCs and rectify as necessary
Using the Jaguar Land Rover approved diagnostic equipment, reconfigure the audio amplifier module with the latest level software
Using the Jaguar Land Rover approved diagnostic equipment, check and update the car configuration file as necessary. Clear the DTCs and re-test
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new audio amplifier module