I have a 91 New Yorker with just over 120,000 not really sure what all or if any of these problems have in common.

1. First off when taking off, the doors should auto lock at a low speed 5 mph or so. Some times they do and sometimes they do after it is drove for a few miles, speedometer is not working untill the door locks ingage.

2. odometer and trip odomter (can't reset it either) went out.

3. Heater is on high heat with the climate control unit face is blank, it is blowing on the floor and defrost, pull the blower fuse and it stops. (bought used heater control head off ebay and does the exact samething).

4. Air bag light on dash went off about the same time as heater went nutz, at least the wife thinks they went at the sametime.

Any help would be great.
Thanks in advance.

 

I have been reading and searching for an anwser to these problems. Trying to figure out if they are conected or not. I have found somethings about the heater and airbag light might be connected by a bad key switch. Anyone think this might be a viable clue? Hate to buy one ane it's not the problem.