1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

Service brakes soon

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Old Jul 4, 2018 | 10:42 AM
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Default Service brakes soon

The light comes on in the dash, the tone beeps, but my brakes are working fine. If I unplug the proportioning valve it stops. Do I replace the proportioning valve, or is there another more likely cause?
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Old Jul 4, 2018 | 7:29 PM
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Originally Posted by Pjrh60
The light comes on in the dash, the tone beeps, but my brakes are working fine. If I unplug the proportioning valve it stops. Do I replace the proportioning valve, or is there another more likely cause?
Could be a bad sensor. The brake service light comes on when it detects something out of place in the brake system.
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Old Jul 5, 2018 | 4:23 AM
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I'm fairly sure it is in the sensor on the valve because if I unplug it the light goes off and the tone stops. Thanks.
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