Question about 2004 Chevrolet Tahoe
C0237? That is an erratic rear speed sensor fault. Is your abs light on? The speed sensor may be unplugged, wire harness damaged, sensor may be failing. The tps is part of the throttle motor assembly. Very expensive, but very easy to change.
Posted on Nov 11, 2014
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Posted on Jan 02, 2017
the two bolts that hold the sensor are torqued to 18 inch pounds. other than that it's self adjusted through the ecm
Posted on Apr 30, 2009
SOURCE: I have a 2007 Chevy
If it is a code P0226 I would not consider it a safety issue. Throttle position (TP) sensor C/accelerator pedal position (APP) sensor ? - range/performance problem Possible Causes: Accelerator cable adjustment, TP/APP sensor Throttle position (TP) switch C/accelerator pedal position (APP) switch ? - range/performance problem Fig. APP sensor mounting
Accelerator cable adjustment, TP/APP switch
This might only be an adjustment issue--make sure the throttle cable isn't so tight that the throttle cannot fully close.
If the cable is OK, it is probably the accelerator position sensor under the pedal.
There are procedures for testing the unit that I will paste below if you care to try them.
If you just want a shop to fix it, the part is about $50 and labor should only be 30 minutes.
Operation The sensor is made up of the two individual sensors within a single housing. Each sensor has a unique functionality to determine pedal position. The APP system along with the Powertrain Control Module (PCM) is used to calculate and control the amount of acceleration and deceleration through fuel injector control.
Removal & Installation
Throttle position (TP) sensor C/accelerator pedal
position (APP) sensor ? - range/performance problem
Possible Causes: Accelerator cable adjustment, TP/APP sensor
Throttle position (TP) switch C/accelerator pedal position
(APP) switch ? - range/performance problem
Fig. APP sensor mounting
Posted on Oct 06, 2010
SOURCE: Have 2003 chevy tahoe with
There is a Tecnical Service Bulletin (TSB) that specifically addresses codes P0120, P0220, and P1516.
It says that the TAC Module can set these codes erroneously under certain conditions. It is very likely that if your vehicle is diagnosed according to the provisions of this bulletin, the problem can be corrected without having to purchase or replace any parts.
It is Technical Service Bulletin number 03-06-04-032
Issued June 16, 2003
Please also review this article: What Else Could Be Wrong?
Posted on May 07, 2011
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