1993 Cadillac Deville Electrical

ERIKJ14

MEMBER
1993 CADILLAC DEVILLE
4.9L
V8
FWD
AUTOMATIC
93,890 MILES

My fuel data center and climate control have gone out for no reason so I don't have a fuel gauge or a/c now I've read that it could possibly be the bcm ( body control module) but I'm not sure. Any suggestions?

Friday, July 10th, 2015 AT 3:05 PM

5 Replies

HMAC300

MECHANIC
48,601 POSTS

Check fuses and relays first then do what it says in pic to see if the diagnosis works after e codes f codes will appear if any. If it doesn't do either have a pro look at it.

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Saturday, July 11th, 2015 AT 6:49 AM

ERIKJ14

MEMBER
2 POSTS

All fuses are good ive checked them before but the problem with checking the error codes is that the ccp doesnt display anything like as if it wasnt getting power or something

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Saturday, July 11th, 2015 AT 8:12 AM

HMAC300

MECHANIC
48,601 POSTS

Then you'll have to find a pro with a tech 1 compatible to read what is wrongbefore yo do anything

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Saturday, July 11th, 2015 AT 10:05 AM

KC4AMC

MEMBER
2 POSTS

I had the same problem on my 1993 4.9 PFI V8. I checked every relay and fuse with no luck. I took it to my mechanic and he had it fixed in a hour. He said it was a bulb behind the gauge cluster. Not sure if this helps anyone but I felt obligated to pass on the information.

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Saturday, July 8th, 2023 AT 10:12 AM