Question about 2003 Chevrolet TrailBlazer

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How to change a accelerator pedal on 03 trailblazer

Accelerator pedal sensor is bad how do i chane it.

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I guess youre talking about a speed sensor if so its located on or near the throttle body remove the wire harness and the 1 or 2 screws that hold it in place youll be good to go

Posted on Jul 14, 2009


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I got codes p1275 and p1280 on my 03 trailblazer. I have since replaced my APP sensor but when installed there was no difference. Still will not accelerate, does nothing, when gas pedal pressed

Have you looked at scan tool data & actually
done any testing, to find a problem ?

No need for parts, until you test one, & it has failed

Have to use factory manuals & follow trouble charts
to use the codes & diagnose the system that set them

The internet will give you a good idea of the codes &
reasons they can be set

Oct 30, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

I replaced my accelerator pedal position sensor on my 03 trailblazer because reduced engine light came on and when gas pedal pressed it did nothing. with new sensor it still does nothing, what do I do

The most common problem on your trailblazer if it has a 4.2 liter engine is the cam shaft actuator gets stuck due to a clogged screen. If the reduced engine power light is on then the check engine light should also be on. You need to check for fault codes to see what step you need to do first.

Oct 30, 2014 | Cars & Trucks

1 Answer

Unit starts but no throttle change the acc. pedal sensor still no throttle

sound like problem accelerator pedal position sensor or PCM fault.

Aug 04, 2013 | 2002 Chevrolet TrailBlazer

2 Answers

Chevy Reduced Engine Power and Auto Gear Transmission

still sounds like another sensor is bad. take it to shop and have it tested would be my suggestion. good luck.....

Aug 13, 2012 | 2002 Chevrolet TrailBlazer

1 Answer

Error code p1271 on trailblazer

That trouble code is faulting the accelerator pedal sensor. The APP sensors are located in a TAC module mounted to the accelerator pedal bracket. There are three individual APP sensors within the TAC module. Three separate signal circuits, low reference circuits, and 5v reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.

Nov 26, 2011 | 2003 Chevrolet TrailBlazer

2 Answers

Code 1481 and1271

your code P1481 is for the cooling fan speed the problem is often the wires and connector that go to that unit ... removing and replugging the connector sometimes fixes it ... also check the fan clutch and fan (not as often the trouble) .. there is a techniical bulliten out for this trouble .. (tsb050605012) .. sometimes the wire harness is replaced for the fan ...

your trouble code p1271 is associated with the accelerator pedal position sensor (APP) (right above the gas pedal) .. again check the wiring and connector going to the APP .. if the APP turns out to be bad then its not hard to change and requires no computer changes ... when you get an APP alarm then your car may go into a "reduced speed mode" ...
here is a list of the service bullitins on your trailblazer....

Apr 15, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

I need to replace Accelerator Pedal position Sensor

there is two little nuts on the bottom of the pedal itself just loosen the nuts and it comes right off.

Apr 20, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

03 altima gas pedal regulator switch

Not gas pedal regulator switch . It's 2003 Nissan Altima Accelerator Pedal position Sensor Has to do with the electronic throttle control .
2003 Nissan Altima Accelerator Pedal Sensor

May 07, 2017 | 2003 Nissan Altima

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