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Re: Electrical issues -> Interior lights & (archive)

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Posted by BRW 94 525i on September 02, 2001 at 12:38:12:

In Reply to: Electrical issues -> Interior lights & HVAC fan posted by '92 e34 on September 01, 2001 at 09:35:29:


Trying to figure out a couple of small problems w/ my parent's car. '92 535ia, ~80k.

Fuse #21 (interior lights / charging plug) blown so I'm in the process of tracking down the short. Hoping someone will have a been there, done that experience or a suggestion for most common places for these cars to cross wires. I'm checking door switches, etc.

second possibly related issue is the hvac blower only operates on position 4. Not sure if the two are related, its difficult to get a straight answer from my dad as to whether or not the failures coincided. The car doesn't get driven much and as a result, little things like this go unnoticed for a while.

Any suggestions welcome.

Thanks,
-tom

First the blower motor only working in position 4 is due to a faulty motor or the resistor pack that controls the switch/fan motor speeds.

IS the fuse repeatedly blowing for the interior lights or is this the first time? Many a times with age the fuse will blow, if the lights remain on for an extended period or when there is current draw and vibration simultaneously the fuse wire may break. I have had several fuses go out on me, ineterior lights, aux cooling fan etc. and once replaced with the same rating fuse you should have safe operation.



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