DTC B1D9F-13: Engine Speed Input - Circuit open: Action
- Refer to the appropriate system wiring diagrams and test the crank signal input circuit for open circuit, high resistance. Using JLR approved diagnostic equipment, clear the DTCs and retest
- If fault persist, check the check the power mode information in amplifier and rectify as required. Clear the DTCs and retest
- If the fault persists, install a new audio amplifier module