Question about 2002 Chevrolet TrailBlazer

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2002 trailblazer 4wd abs light and parking brake light stay on- what is the possible cause?

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You have to check the braking system, some sensor might be bad

Posted on Jul 23, 2009

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Abslight stays on. How to fix? This is a2007trailblazer?


First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

Dec 30, 2016 | 2007 Chevrolet Trailblazer

1 Answer

Nissan X Trail ABS warning light intermittent


Check front brake pads for wear and possible replacement. If never changed originals, there is a high likelihood they are worn out.

Jan 07, 2014 | 2002 Chevrolet TrailBlazer

1 Answer

2002 Trailblazer 4wd - Brand new brake pads, rotors, and hub assembly that contains the bearings. When I soft brake a grinding/slipping sounds occurs but the brakes are not slipping. Hard/fast brake no...


Sounds like over active ABS. is it possible that one of the bearings you installed is defective? Where the axle nuts tightened to the proper spec. Have you checked for play on the new front bearings? Otherwise you will need a high end scan tool to monitor wheel speed data from the abs module. It will be fairly easy to see what speed sensor is dropping out and causing the aver active abs to occurs.

Sep 08, 2013 | 2002 Chevrolet TrailBlazer

2 Answers

I have 2002 chevy trailblazer lt the abs light stay on


Most likely one of your ABS sensors are dirty or the wire has corroded. Common for the sensors to get dirty since there magnetic and a simple cleaning will fix this. The ABS sensors are on each wheel on the inner side and can be cleaned with brake parts cleaner. If there was rust from the rotor or dirty that got in between the speed ring and sensor, you most likely have to replace the sensor.
Start with cleaning and inspecting the sensors, it my just be dirt build up and the sensor needing realignment which is a quick fix. After that and you still have the ABS light on, one of your sensors have gone bad. Go to Auto Zone and buy the brake parts cleaner and have them scan your trailblazer for which ABS component when bad to help address which sensor it is and yes they scan free of charge.
Thank you for using fixya.

Jun 29, 2010 | 2002 Chevrolet TrailBlazer

2 Answers

The abs and safety brake light has come on. Is this a fuse problem


check your brake fluid level, brake system, wheel sensors. Dirty wheel sensors usually cause the ABS light to come on. As for the brake warning light, it may be low on fluid (possible leak) or faulty E-brake switch.

May 22, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Aervice 4wd light keeps coming on. abs light comes on. today the service 4wd, abs an parking brake light came on at the same time. the screen said service brake system. what should i check for.


all of these things point to one wheel having some kind to problem. Need to do a visual inspection of wheels from under side of the car. Also check for excess heat at any wheel. Look for leaks the could get into connectors from sensors that are telling the computer something is wrong

Apr 24, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

2002 trailblazer LT abs light comes on


HAVE IT SCAN.AT DEALERSHIP.THEY HAVE TO USE A ABS SCANNER TO CHECK IT OUT.

Aug 10, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

My 2002 chevorlet trailblazer LT abs light came on and stays on and turns off if i break and when i let go it goes on it started a couple weeks ago now the light doesnt turn off at all i took the fuse out...


There is no way to turn off the abs light. The system works through the abs module, even if that fuse is pulled the light will remain on.

The brakes will work but you will not have the abs safety working for you.

Have it fixed ASAP!!

Aug 10, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

ABS and Parking Break dash indicator lights stay on


I HAVE SEEN A BAD BRAKE LIGHT SWITCH.CAUSE THE ABS LIGHT AND BRAKE LIGHT COME ON.WHEN SWITCH WAS REPLACE BOTH LIGHTS WENT OFF.

Jul 22, 2009 | 2001 Ford Windstar

1 Answer

Dash board parking brake and ABS lights stay


you have an abs fault. have your abs system scanned for codes.

your base brakes will continue to function normally

Apr 13, 2009 | 2002 Chevrolet Suburban 2500

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