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How do you reset ecu on 1994 Cadillac Deville

Resetting ECU on 1994 Cadillac Deville

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The only reset I know of on OBD-1 systems (like yours) is to disconnect battery for a couple of minutes. Take off the negative cable for a few minutes.

Posted on Apr 29, 2017

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My 1990 Cadillac Allante suddenly won't shift into 3rd.


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1 Answer

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Instructions
    • 1 Turn the ignition switch to "Off."
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    • 3 Grasp the fuse that is labeled "ECM" or "ECU." The inside of the fuse panel lid shows a chart indicating where each fuse is located.
    • 4 Pull the fuse straight out of the fuse panel to remove it.
    • 5 Turn the ignition switch to "ON" without starting the engine. Leave the Cadillac in this state for five minutes.
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Should I reset my ecu when I change the o2 sensor for a 94 del sol d16z6?


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Service air bag light is on 2000 cadillac deville dhs. what are the possible reasons.


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Hello: On the passenger side, Behind the glove box on top of the heater case is the Body control module, From underneath (passenger side) along side of the Programmer is the Engine control module. There is no one main ECU. This information applies to the sedan devilles with the 4.9 engine

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I have a 1991 cadillac deville. The batterey went bad so I replaced it. Now it cranks over perfectly, but it will not start. Everything in the ignition system is good and the fuel pump is fine. I heard...


To restart the ECU unplug the battery for 1/2hr and turn key on

But if your battery was bad The ECU should have lost power then..

What i do to be sure is unplug red and black from battery,, then tuch them together so you dont have to wait,"""NOT RECOMMENDED""" This is what i do..Works for me, some say this is not a good idea,,

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Charged battery out of car. reconnected battery, car starts but shows theft prob,oil light but just changed oil and filter,no fan,windows,etc working. gear display blinks all the time. is there a reset for...


There is a reset for the ECU but unfortunately it's not a DIY job. All dealers and most mechanics have the special equipment for an accurate reset.
HINT: Theres an inexpensive device on the market that you can plug into a cars cigarette lighter that will provide power to ECU if you need to remove the battery.

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