heater climat controll and dash lights just stopped working

1990 CADILLAC FLEETWOOD
200,000 MILES
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ROSSTUKEN
  • MEMBER
  • 1 POST
car was running heaterstopped working climatcontroll wont display control that shows fuel consumtion stopped working cant find any fuses blown
Dec 15, 2011 at 12:15 AM
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FACTORYJACK
  • CAR REPAIR CONTRIBUTOR
  • 4,159 POSTS
Usually indicates a communications malfunction between the body control module, fuel data center, and the climate control panel. Do you have a digital instrument cluster, and is it still displaying speed info?
Dec 15, 2011 at 3:00 AM
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CADIEMAN
  • CAR REPAIR CONTRIBUTOR
  • 3,544 POSTS
its either one of the 2 heads or the bcm.remove the l and r info panels,but leave them pluged in.unplug the fuel center does the a/c panel lite?if no plug it back in and unplug the a/c panel does the fuel panel lite up?if still nothing you will have to replace the bcm.
Dec 15, 2011 at 3:55 AM