Question about 2004 Chevrolet TrailBlazer

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What is the pcm in a 2004 chevy trailblazer? and how I can fix it.

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  • Master
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PCM is what control's all of your engine sensor's, there's no repair for the PCM, but to replace.

Posted on Nov 09, 2010

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  • Chevrolet Master
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Before changing your PCM you will have to check all power wire and all ground. PCM need all that to work.

I saw people change PCM and it was a fuse bad check up

and if you change the PCM you will have to reprogrammed before it works

HOpe it help

Posted on Jun 27, 2015

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P0014 Diagnostic code, already replaced camshaft actuator & oil twice


code p0014 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

forums.trailvoy.com > ... > OEM Issues

Sep 8, 2007 - 11 posts - ‎8 authors
On my Trailblazer I have a code P0014 . this says Camshaft Position Actuator B ... If the desired and actual cam phase angle error exceeds its ... This diagnostic procedure supports the following DTC: ... replace the camshaft actuator solenoid, change the engine oil and filter, ... 2004 Chevy TrailBlazer LT P0014 - Camshaft Position Actuator Solenoid "Relearn"
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Tech Code "dtc P0014" 2003 Trailblazer - Chevy S-10/Blazer ...

www.gm-trucks.com/.../72278-tech-code-dtc-p0014-2003-trailblazer/

Dec 31, 2007 - 14 posts - ‎6 authors
Tech Code "dtc P0014" 2003 Trailblazer - posted in Chevy ... it had been serviced before for the same thing in 2003 or 2004! ... replace the camshaft actuator solenoid, change the engine oil and .... The extended war. co. prob. would not be to happy since they already fixed the sensor once or twice already.

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Jan 11, 2016 | 2004 GMC Canyon

1 Answer

Rear ac blows in my 2004 Chevy trailblazer when vehicle is off. Front ac is off. What could be the problem? Just started after changed coil pack and hooked battery back up.


Turn everything, all switches, off then disconnect both battery cables and leave disconnected for 30 minutes. This resets PCM to defaults. Then reconnect ( + ) first then ( - ).

Feb 25, 2015 | 2004 Chevrolet TrailBlazer

1 Answer

2004 trailblazer problems


Check for OBD2 codes, primarily a code indicating PCM memory is corrupt. My Trailblazer at times wouldn't turn over and start. Nothing at the key. When you attempt to start the vehicle and you turn the key to the start position, the PCM sends a signal to the starter relay to start the engine. Youtube video showed a mechanic warming the PCM with a hair dryer, and it would start. Tried it on mine and it started fine. If it is the PCM, the remedy is PCM replacement. Got mine from pcmforless.com about $100.00. They had to program the new PCM with the vehicle vin number. Once installed no more problems.

Apr 04, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

CRUISE CONTROL WON'T WORK ON 2005 CHEVY TRAILBLAZER


check cruise control fuse and check the brake lights see if brake light working because the brake light switch will deactivate cruise control when brakes is applied.if brake lights dont work either fuse blowed or switch bad.if all is good have vechicle code scan because cruise control control by PCM and vechicle speed sensor and thottle actuator control motor.

Apr 17, 2013 | 2004 Chevrolet TrailBlazer

1 Answer

What does a 600 reading from the computer of a 2004 chevy trailblazer mean?


P0600 is a serial communications link problem with the PCM. This could just be a problem with the connection to the diagnostic tool, and not really be a problem with the truck, could be the tool. If your truck is running normally otherwise, try a different code reader to narrow the problem. If it appears with multiple readers, the problem could be the PCM, or its female serial connection to the reader.

Sep 23, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

My mom has a 2004 chevy trailblazer and her brake lights weren't working she changed the fuse they work now but her directionals aren't working at all now


Did she disconnect the negative terminal from the battery when replacing the fuse? Is it possible she swapped fuses instead of replacing them? One easy thing to try is to disconnect the battery for at least 30 min to allow the PCM (computer) to reset itself.

Sep 21, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

Battery changed on 2004 chevy trailblazer and now it stalls out and idles really rough...any solution


Sometimes the Computer [PCM] that controls the engine will loose it's memory on how you've driven it when power is removed. It should reset itself after a few miles of driving.

Mar 17, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

Looking for OBD codes chevy trailblazer 2004. codes p0128,p1680


The P0128 is your thermostat. Your engine isn't getting up to temperature, is probably stuck open.

P1680 has to do with your pedal position sensor. Either way, your PCM either needs to be recalibrated by the dealer OR replaced. This depends on where your VIN # falls on the list of the technical service bulletin that is out there.

Mar 08, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

How and where do I find a Power-Train control module on a 2004 Chevy Trail-Blazer


easyiest way to find info about any car you own is clymers books.helps to see if its something you really want to do yourself.

Jan 21, 2009 | 2004 Chevrolet TrailBlazer

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