Reset computer and clear codes?

Tiny
MUSTANG67MH
  • MEMBER
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • AUTOMATIC
  • 212,000 MILES
How do I reset the cars computer? 2002 chevey cavalier. And where is the speed sensor located?(For the odmeter? Thanks
Tuesday, May 17th, 2011 AT 7:26 PM

8 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
This video shows the job being done on a similar car but the process is the same.

https://youtu.be/ahK_eucFi-k

The speed sensor is in the transaxle output housing.
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Tuesday, May 17th, 2011 AT 8:11 PM
Tiny
MUSTANG67MH
  • MEMBER
  • 11 POSTS
Thanks. I reset the service light.
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Wednesday, May 18th, 2011 AT 12:08 AM
Tiny
SHANNONMILLSON
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET CAVALIER
How do I reset the computer?
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Monday, June 14th, 2021 AT 9:57 AM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
First, read the codes, then fix the problem, light will go out, if you reset it with a scan tool, without fixing it, the light will return! Go to this guide

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
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Monday, June 14th, 2021 AT 9:57 AM (Merged)
Tiny
CMOARD
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 98,000 MILES
My daughter recently changed the starter and the solinoid in her car. Since then when she starts it up the lights on dash ( theft system, abs, airbag, seatbelt check engine etc.) Continually flash on and off.
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Monday, June 14th, 2021 AT 9:57 AM (Merged)
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Hello,

It sounds like the got the wires wrong but here is how to reset the computer

https://youtu.be/ahK_eucFi-k

Please let us know if you need anything else to get the problem fixed.
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Monday, June 14th, 2021 AT 9:57 AM (Merged)
Tiny
LOWELL0866
  • MEMBER
  • 1 POST
  • 1996 CHEVROLET CAVALIER
What is the process for resetting the computer after it has been replaced?
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Monday, June 14th, 2021 AT 9:57 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Here is the computer learning process they is no scanner style of reprogramming.

You can clear the codes before you begin though. Here is a video

https://youtu.be/ahK_eucFi-k

VEHICLE DRIVEABILITY RELEARN PROCEDURE
General Motors does not provide a specific procedure for driveability relearn. If a vehicle battery was disconnected for facilitating repairs or a Powertrain Control Module (PCM) was replaced, driving the vehicle will enable the PCM to relearn driveability. Inform your customer that he/she may experience driveability different from what they are accustomed to until the PCM completes it's relearn function.

Please let us know if you need anything else to get the problem fixed.

Cheers,
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Monday, June 14th, 2021 AT 9:57 AM (Merged)

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