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1988 Cadillac Deville "Instrument Cluster" Problem


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kk137
New User

Jun 14, 2014, 2:07 AM

Post #1 of 4 (3439 views)
1988 Cadillac Deville "Instrument Cluster" Problem Sign In

My '88 Cadillac Deville Digital Instrument Cluster/Climate Control has been off for a while a now, no blink or flicker. Makes it difficult to have fuel reading. I've checked the voltage from the battery to various connector wires to the Fuel Date Center (FDC) and they are all good. I even replaced the FDC and observed with power on, the bulbs in the FDC lights up. Clearly, power is finding its way to the FDC. The battery terminals have been checked as well as voltage so i'm good on power. I want to change the Body Computer Module (BCM) since it sends processed data to the FDC. I want to know if i'm on the right path. What part does this component adjacent to the battery(grey in color) do? is it in any way related to the instrument cluster electrical system?



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 14, 2014, 2:11 AM

Post #2 of 4 (3437 views)
Re: 1988 Cadillac Deville "Instrument Cluster" Problem Sign In

That's an air suspension pump.



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kk137
New User

Jun 14, 2014, 2:22 AM

Post #3 of 4 (3434 views)
Re: 1988 Cadillac Deville "Instrument Cluster" Problem Sign In

thank you for the reply. the air suspension pump, has a humming sound for 5min after the engine is turned of. Is it normal for the air suspension to do that? what do you think about my early thread on the Instrument Cluster situation


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 14, 2014, 3:04 AM

Post #4 of 4 (3422 views)
Re: 1988 Cadillac Deville "Instrument Cluster" Problem Sign In

5 minutes seems too long but some well equipped GMs did auto level out when parked w all things off being at a different angle or unloaded of passengers and items. Not for long though. Most said to switch system off when hoisting as well. Leaks would possibly make it run longer or constantly. Alone that shouldn't be messing with the cluster?


T
(Edited out dumb spelling errorsUnsure)



(This post was edited by Tom Greenleaf on Jun 14, 2014, 5:16 AM)






 
 
 






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