How to Reset a Cadillac's Computer

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A Cadillac's computer controls the emissions system and other vital systems on the vehicle. When there is something wrong with the Cadillac, the computer will generate and store a fault code. You'll need to run a diagnostic test to figure out what is wrong with the vehicle. Once you've fixed whatever is wrong, you need to reset the Cadillac's computer.

  • Open the fuse panel under the steering column by pulling down on it with your fingers.

  • Locate the fuse for the Cadillac's computer. This fuse will be labeled "ECU," for "electronic control unit."

  • Pull the ECU fuse using the fuse pullers in the fuse panel.

  • Turn the ignition key to the "on" position but do not crank the engine.

  • Wait 5 minutes and replace the ECU fuse. The computer will reset itself.

References

  • "Cadillac Repair Manual: DeVille 1994-2005, Seville 1992-2004"; Bob Henderson, John H. Haynes; 2006
  • Photo Credit Scott Olson/Getty Images News/Getty Images
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