Question about 2002 Chevrolet TrailBlazer

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Where is the OBD connector for a 2002 Chevy Trailblazer?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 30 Answers

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.

Posted on Aug 16, 2008

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savdragon
  • 37 Answers

SOURCE: locate camshaft sensor 2002 chevy trailblazer

Assuming you have a 4.2L engine here is the location.
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Hope this helps out,
if so please rate my answers.
Brett

Posted on Mar 19, 2009

dsacco86
  • 1077 Answers

SOURCE: 2002 Chevy Trailblazer w/101,000 mi has the P0440

OBD II Generic Check Engine Light Codes:

DTC Codes - P0400-P0499 – Auxiliary Emissions Controls

P0440 Evaporative Emission Control System Malfunction

Posted on Mar 22, 2009

  • 236 Answers

SOURCE: I have a 2002 chevy trailblazer LS. The gauges on

check to make sure a fuse hasnt blown or a relay

Posted on Jun 17, 2009

  • 68 Answers

SOURCE: I have a 2002 Chevy Trailblazer. Just replaced

If you unhooked battery it will need to relearn its idle position, should help if you clean throttle blade edge and body of carbon so proper amount of idle air can enter engine.

Posted on Mar 01, 2010

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1 Answer

2002 CHEVY TRAILBLAZER keeps setting a FAN Speed Sensor Code.


CJ, this is very common for the I6 engines in TB's and Envoys. You need a new fan clutch. Triple check the wire connectors first, located on the top of the radiator on the drivers side, make sure those are in tact first. Then replace the fan clutch. Might as well do your water pump and serpentine belt while you're in there.

Jul 08, 2015 | 2002 Chevrolet TrailBlazer

1 Answer

What could be the problem/fix for 2003 chevy trailblazer which is accelarating on its own?


What OBD Codes do you have?

What does the data look like, on a road
test when that happens?

Aug 18, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

The obd 2 scanner wont scan because its not receiving power from my truck (04 chevy trailblazer ) .where is the fuse that controls that circuit for the ecm


The OBDII connector receives its power from the AUX PWR 2 fuse (#15) located in the fuse panel under the rear seat. This fuse also controls the accessory power plugs on the dash.

Oct 22, 2010 | 2004 Chevrolet TrailBlazer

2 Answers

2002 Chevy trailblazer was put on machine and had codes U1041-P1633 and P0014 stored in ECM What does this mean?


2002 Chevy trailblazer was put on machine and had codes U1041-P1633 and P0014 stored in ECM What does this mean

May 29, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

My headlights continuously blow on my 2002 Chevy Trailblazer. Everytime I replace the bulb and white connector plug on one side the other side melts and blows.


This is an unfortunate regular problem on this cars, if I am not mistaken they have a factory recall to fix this problem. It is caused by electrical problem on the wiring. Take it to the dealership see what they say. Good luck.

Dec 29, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

I need to replace the alternator plug on a 2002 Chevy Trailblazer 4.2. The replacement plug has two whips coming off it but they're both white. Where can I find a diagram showing which gets the red and...


Connector Cavity B has the red wire and Connector cavity C has the Gray wire in it.

Looking at the end of the connector that plugs into the generator, going left to right... Cavity A,B,C, and D.

Nov 05, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

I changed the battery in my 2002 Chevy Trailblazer last night. Car starts and runs fine, but the majority of the interior electric components are not working. I changed out the battery relay in the fuse...


Replaced the 125A Mega Fuse ($10 from dealer). The fuse is outside the fuse box under the hood, under the connectors from the battery to the fuse box.

Sep 30, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

2002 Chevy Trailblazer w/101,000 mi has the P0440 OBD II Code. Just replaced the plugs with Iridiums @ 100K, all connections are good and gas cap is seated properly . . . help!!!


i have 2003 trailblazer ltz 153 000 mileage i have code po440 .i changed gas cap and turned off the chech engine light... i made 300 miles and it was good and today morning i drove a mile and light turned on ..... what do i have to fix ...thanks

Mar 22, 2009 | 2003 Chevrolet TrailBlazer

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