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The "D" indicates that there is a communication error between the Power Control Module (PCM) and the Body Control Module (BCM). Problems with the communication line are usually complex and require the diagnostic expertise of a factory trained technician. However, in some rare cases, this problem has been linked to a faulty fuel gauge sending unit. Take the car a GM/Cadillac dealership for proper diagnosis of the problem.
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How do you check fuel gauge on Cadillac deville?
Take it to Pep Boys
Why would the fuel gauge work only in the top half of the tank in a 1997 deville?
check for a damaged fuel tank
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Fuel pressure error.
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Why is Nissan Murano fuel gauge on empty with full tank of gas?
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What is the fuel tank size on a 1988 Cadillac sedan Deville?
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Is a 1999 deville fuel pump in fuel tank?
yes
Where is the fuel pump on a 1992 Cadillac Deville?
It Is In The Fuel Tank
How do you find fuel pump relay on 1994 Cadillac deville?
trying to find fuel pump relay on my 1994 cadillac deville
