2000 Jaguar XJ8 Q&A

2000 Jaguar XJ8 Question: gearbox fault

sometimes when i try to start car i get a gearbox fault message on the dash. all appears normal but no crank. i also noticed the letters Er on the climate control at this moment. any idea what this means and why i cant start. -
Answer 1
Sounds like the gear position sensor is failing? Is that what you found? -
Comment 1
where and what is the gear position sensor? i thought the problem might be the brake pedal switch. but i dont think so. when i turn the key on i cant even get the car to go into neutral. there is no crank. when the car does work. i hear the gear lock disengage when i hit the brake pedal.. but the car should still start in park without the brake pressed. is there a sensor that gives this gearbox fault message. i put on an obd comp. and got code p1111. it means nothing as nfar as i can see. so it did not store a code. this was shortly after i had the problem so the codes did not clear. it has also said failsafe mode after it says gearbox fault. please help. -
Comment 2
where and what is the gear position sensor? i thought the problem might be the brake pedal switch. but i dont think so. when i turn the key on i cant even get the car to go into neutral. there is no crank. when the car does work. i hear the gear lock disengage when i hit the brake pedal.. but the car should still start in park without the brake pressed. is there a sensor that gives this gearbox fault message. i put on an obd comp. and got code p1111. it means nothing as nfar as i can see. so it did not store a code. this was shortly after i had the problem so the codes did not clear. it has also said failsafe mode after it says gearbox fault. please help. Flag This -
Comment 3
it's a engine crank sensor located at the engine crankshaft which determines the starting of the car.it might be melted so no reading giving -
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and the the light on the dash say gearbox fault and car start off in low gear