the letter c and d appear on gas gauge and A/V heater display.
Jan 7, 2020 at 2:57 PM
dashboard display
1991 CADILLAC DEVILLE
RONTHE3RDEDITION
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Good afternoon,
Can you post a picture of what you see to this post?
As far as the displays, they are controlled by the BCM or body control module. I attached diagrams and a flow chart for you to follow to determine the failure. The most common cause was the BCM.
Roy
Can you post a picture of what you see to this post?
As far as the displays, they are controlled by the BCM or body control module. I attached diagrams and a flow chart for you to follow to determine the failure. The most common cause was the BCM.
Roy
Images (Click to enlarge)
Jan 8, 2020 at 1:05 PM