DTC B1D9F-11: Engine Speed Input - Circuit Short To Ground: Action

NOTE: When checking the audio amplifier module crank signal input circuit for a short circuit to ground the engine must be off with the audio amplifier module powered on

Refer to the appropriate SYSTEM WIRING DIAGRAMS and check the audio amplifier module crank signal input circuit for short circuit to ground, repair the harness as required
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 up-date 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