Question about 2001 Pontiac Aztek

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Location of Engine Control Module for 2001 Pontiac Aztek

A number of engine related problems (non-fatal) have been ongoing for awhile. A mechanic said I should have the engine control module replaced. I have the module but where does it go? By the way, the ECM is not the same as the BCM.

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  • celowry Jan 22, 2009


    I found the ECM on the driver's side of the engine compartment underneath the Coolant Overflow Reservoir in a large black plastic box.

    Thanks for the help.


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The ECU is the Electronic Control Moudule usually located in the Engine compartment. To the passenger side. The BCU id the Body Control Module located near the brake pedal under the dashboard.

Posted on Jan 22, 2009

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This may sound like a very good answer but if you google "where is the heater location on a 2001 pontiac aztek" they will actually give you pictures and diagrams of the location in the engine showing exactly what you want and need to see.I have used this when locating my O2 sensor .Hope this helps!! Good Luck!!

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Transmission will not engage into any gear

Most likely your transmission has failed and needs to be rebuilt but please read more about the problem below.

The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems ca cause many drive-ability related problem such as rough idle and other symptoms

Oct 15, 2012 | 2001 Pontiac Aztek

1 Answer

Had body control module replaced on 2001 pontiac aztek now the check engine light is on constant. codes indicate it could be a map sensor or an oxygen sensor is there a testing method for these and how do...

There are ways to test anything on any vehicle

That can only be done with knowledge,scan tools,
oscilloscopes,& vehicle reference material, such as
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You can not work on todays vehicles by changing
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Jul 21, 2011 | 2001 Pontiac Aztek

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Trying to find the location of the pcv valve on a 2005 Aztek

My cousin has a aztec, and the pcv on hers is drivers side, front of engine by front motor mount. Hers is a 2001.

Nov 27, 2009 | 2001 Pontiac Aztek

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Do i have to pull the motor to change the oil pan gasket in my 2001 pontiac aztec?

no. just put the car on either ramps or jack stands. do not leave it on a jack. crawl under the car and you will find the oil pan on the bottom of the motor

Oct 28, 2009 | 2001 Pontiac Aztek

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How do i reset service light on 2001 pontiac aztek?

Before you re-set it, take the car to AutoZone or other similar store to read the code. That way, you know why the service light came on.
Then AutoZone can re-set it for you (all free)!

== or ==

Disconnect the negative cable from the battery for 10 minutes, or more.
When you re-connect the battery cable, the service light will have benn reset. But it will turn back on eventually.

Hope this helps!

Sep 10, 2009 | 2001 Pontiac Aztek

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My aztek 2001got attached with a welding rod of high voltage died

You probably fried the engine control module if you did not disconnect battery first.If so you can go online and order reman unit that you will give them your vin# and the will pre flash program for your car to it.this will be needed toset up correct options.

Jun 11, 2009 | 2001 Pontiac Aztek

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the body control module is located under the center console under shifter silver box four colored plugs

Dec 04, 2008 | 2001 Pontiac Aztek

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