1999 mercury mountaineer air bag problem

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ronnie310
Posts: 7
Joined: Tue Apr 15, 2014 12:51 pm

1999 mercury mountaineer air bag problem

Unread post by ronnie310 » Mon Jul 21, 2014 11:30 pm

1999 mercury mountaineer the air bag light was on and it had a B1994 code. now the light has gone off and a warning beeper comes on. you can remove the air bag diagnose fuse and the beeper stops, this fuse also operates the a/c heater blowers. I have taken steering wheel off, but have stopped at the adapter wheel for the wiring harness. my book does not show to take it off. I'm I on the right track. Thanks for your help. You helped me with the rough idling when cold, I replaced the intake gaskets as you advised.
thanks

 

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carriedi
Posts: 2266
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: 1999 mercury mountaineer air bag problem

Unread post by carriedi » Tue Jul 22, 2014 10:56 pm

b1994, my information says that this code is for left side air bag circuit resistance high. the code is set if the RCM sees the resistance over 3.6 ohms. the white/light blue wire and the brown/light blue wire are pins no. 2 and 3 in connector 233. it could be that there is damage that causes to much resistance in the wires or a damaged air bad or an open in the circuit
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