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kris 3/18/2012

2011 Mercury Grand Marquis LS 8 Cyl 4.6L

Body & Interior

Air bag light flashes code 71

Wire burned in car and air bag light flashes code 71 now

2 Answers

EG9 K20A3

EG9 K20A3 3/23/2012

7-1 Driver Safety Belt Buckle Switch Circuit Short to Ground

Some say its a sensor on the passenger seat which is not cheap. There's two parts to this... the module bolted to the floor under the seat, and the sensor mat glued on top of the passenger seat cushion.

Sorry couldnt give any more details depends on how confident you both are in how the repair will go. Could be as simple as a wiring connector issue or the whole module might need to be replaced. I can't be sure.


colin 3/23/2012

Airbag software encrypted on a 2001 car so no codes will flash its a dealer only job to sort out with car connected via the internet to the factory .This is modern technology for you jobs for the boys and you have to pay end of story


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