DTC B1D9F-13: Engine Speed Input - Circuit Open: Action

NOTE: When checking the audio amplifier module 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 and check the audio amplifier module crank signal input circuit for open circuit, repair harness as required. 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 the audio amplifier module from the infotainment master controller. If the audio amplifier module power mode is incorrect 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 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