DTC B1142-02: Ignition Status 1 - General signal failure: Action
- Refer to the appropriate system wiring diagrams and check the ignition signal circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new transmission control switch