SOURCE: 2002 Chevy Trailblazer Engine Codes
This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.
SOURCE: ABS light on 2002 trailblazer
have autozone scan it for free could be multiple things wrong wheel speed sensors to abs pump does it come right on after starting? or do you have to drive it???
SOURCE: locate camshaft sensor 2002 chevy trailblazer
Assuming you have a 4.2L engine here is the location.
Hope this helps out,
if so please rate my answers.
Brett
SOURCE: 2002 trailblazer 4.2 4wd
beleive it or not changing the oil if dirty will solve this code, also found that connector gets oil in it and that also makes p1345 code turn on, open connector and look for oil in it,look at sensor and actuator plugs for oil,the main plug connector is the actuator plug it fills with oil and makes contact between pins setting p1345 code, hope this helps.
SOURCE: i have 2002 chevy trailblazer lt the abs light
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.
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