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Fuel & Climate Control is still Not working it?

Tiny
KIDS
  • MEMBER
  • 1989 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 60,000 MILES
I have a 1989 Cadillac DeVille & I was told the BCM/ Body Control Module was Bad. So I just Changed IT! And the Fuel & Climate Control is still Not working it! The Electric there is No Reading!
Tuesday, March 15th, 2011 AT 10:09 PM

4 Replies

Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
1 of the panels are bad. Remove both panels disconnect 1 then plug back in and disconnect the other. When u unplug the bad 1 the other will lite up gl
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Tuesday, March 15th, 2011 AT 11:25 PM
Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Does this have a digital cluster as well, and is it working? One thing to check, that may apply, is checking fuses. Particularily check fuse #7 in the fuse block. If this fuse is open, it is possible that the A/C clutch coil is shorted, causing the excessive current to blow the fuse as the compressor is cycled. Fuse #7 also is a power supply to the BCM. In the schematic, it just shows the power input from fuse 7. It does not illustrate what that power input directly affects, but I have seen this concern in the past. One way around the problem, if it is blowing the fuse, is disconnect the clutch coil, or remove the relay. The side affect, is you won't have A/C, but you will have instruments.
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Wednesday, March 23rd, 2011 AT 5:28 AM
Tiny
CHARLESGARAGE
  • MEMBER
  • 1 POST
Caddie man is right
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Monday, August 14th, 2023 AT 9:41 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

Did you have the same issue? Also, thanks for the information. It is helpful to everyone.

Let me know.

Joe
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Wednesday, August 16th, 2023 AT 11:30 PM

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