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Gearbox fault

(2000 Jaguar XJ8)
in Staten Island, NY on October 02, 2009
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.
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Popular Answer
on October 26, 2009
Sounds like the gear position sensor is failing? Is that what you found?
on June 07, 2010
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.
on June 07, 2010
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.

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on October 29, 2010
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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