1994 Buick Lesabre Speedometer and Lights

1994 BUICK LESABRE
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SCOTTY989
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  • 1 POST
The ABS light, Security light and INF. REST. light all come on and the speedometer and odometer stop working. This happens periodically since the brakes were repaired and the mechanic scratches his head and says "must be a sensor". Could this have been caused by something they did while repairing the brakes? or is there a specific sensor that affects these? Fuses are all ok.
May 2, 2007 at 12:04 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Sorry for the late reply.

Make sure the battery has a full charge, all battery connections good and check the charging system.

Anything to do with instrument cluster warning lites, I'd have to check your instrument cluster, basically check voltage and ground and serial data, where applicable, for instrument cluster. Any applicable trouble codes? Are you fully obd1 compliant?

You may also have to check ignition switch, systems for your instrument cluster may not go hot, unless the key is on.
Intermittent issues can be a pain to track, have to test when problem is ongoing. As far as abs sensor, check the wheel speed sensor. I can't think of anything else at the moment.

I realize this is an old post. In the future, hope you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to improve the site and it's free to ask a question. They have more moderators now, to answer questions, than they did several years ago.
Have a good day.
Jun 15, 2015 at 2:02 AM

Suggested Repair

Check battery charge, connections, and the charging system. With the fault present, verify instrument cluster power, ground, and serial data, scan for codes, and inspect the ignition switch and wheel speed sensor.

Conversation Summary

A 1994 Buick Lesabre intermittently shows the ABS, security, and information reset lights while the speedometer and odometer stop working, starting after a brake repair. Fuses are good. The expert recommends checking the battery, connections, and charging system, then cluster voltage, grounds, serial data, trouble codes, the ignition switch, and the wheel speed sensor while the problem is occurring.

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