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How do I reset the computer for a 2003 cheverlet caverler

My ABS light and the TRAC OFF lights are on also the engine light.

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  • Cars & Trucks Master
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Speed sensor in final drive is causing ABS and TRAC warning light. Perform an OBDII scan for the engine light.

Posted on May 15, 2017

  • Joe Stanton May 19, 2017

    Notice I said the speed sensor in the final drive. This sensor is reading the ring gear speed in the differential, this speed affects locking function for TRACtion control and ABS. Metal dust is collecting on the sensor. Remove the sensor, wipe off and reinstall to correct gap. Change transmission filter and fluid every 60,000 miles for continued performance. The OBDDII scan can reset this fault as well as the ABS fault. Check for other faults concerning check engine light.

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I would think you have a bad wheel speed sensor that is making the light come on. is could be as simple as a broken wire. repair the problem and the light will go out.

Posted on May 15, 2017

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  • Cars & Trucks Master
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Repair the antilock brake system first. That should stop the engine light from coming on. If you don't do the repair, no matter how many times you reset the computer, the engine light will come on. Run a diagnostic test to find out what else is wrong. You reset the computer by disconnecting both battery cables, touch them together for a few seconds then reinstall.

Posted on May 15, 2017

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Posted on Jan 02, 2017

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