1989 Cadillac Deville

1989 CADILLAC DEVILLE
80,000 MILES • V8 • FWD • AUTOMATIC
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SYLVIA CUCH
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  • 3 POSTS
i have an 89 deville w/80000 miles.started it today chk eng light came on and heater-ac fan blowing on high speed also nothing in display exept small c..also fuel display blank exept for small c in gauge.i disconnected pos bat cable but no change.otherwise car is normal
Jul 4, 2008 at 5:38 PM
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MERLIN2021
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  • 17,250 POSTS
First do this to check for codes, then when trying to reset stuff, remove the ground(-) negative cable, not the positive. Cross these two terminals as shown, then turn the key on. Count the flashes, a 22 will flash as 2 flashes then a short pause, then 2 flashes, if more than one code is stored, the pause will be longer. The codes will display three times and end with 12. Write them down and post here. This connector is right under the middle of the dash...


https://www.2carpros.com/forum/automotive_pictures/62217_95_OlderGM_29.jpg

Jul 4, 2008 at 6:21 PM