Question about 2006 Chevrolet Trailblazer

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Have 2 codes P2431 and P2432 what do i do to correct these? on a 2006 chevy trailblazer

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Posted on Jan 02, 2017

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SOURCE: HAVE A 2005 CHEVY TRAILBLAZER WITH P2432 CODE ?

Yhea it's under the truck on drivers side bolted to the transmisson crossmember. There are three 13mm headed bolts holding it on, they go up through the crossmember and bolt to the bottom of the bracket that is holding the air pump on. there are two hoses going to the pump that you need to take off and two electrical connectors. Then you will need to switch a few things over after you get the old one out. Not hard at all, Becarful when pulling the hoses off most of the time the reason they fail is because water has gotten in there, when you take the hoses off you get soaked(i speak from lots of unexpected showers).

Posted on Oct 18, 2009

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mycharmingli
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SOURCE: my check engine light is

It pertains to your "air pressure sensor" you need to have it replaced.. hope this helps you out...

Posted on Dec 31, 2010

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1 Answer

2007 cobaltpo651 circuit b how do i trll which is circuit b


DTC P0651: 5-Volt Reference 2 Circuit First off do you know what computer reference voltage is ? Your vehicle has 2 reference voltage circuits . This reference voltage is used to power engine sensors .
Diagnostic Fault Information
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Accelerator Pedal Position (APP) Sensor 1 5-Volt Reference 2 Circuit
P0651
P2122
P0651
--
Accelerator Pedal Position (APP) Sensor 2 5-Volt Reference 1 Circuit
P0641
P2127
P0641
--
Air Conditioning (A/C) Refrigerant Pressure Sensor 5-Volt Reference 1 Circuit
P0641
P0532
P0641
--
Crankshaft Position Sensor 5-Volt Reference 2 Circuit
P0651
P0335
P0651
--
Fuel Tank Pressure (FTP) Sensor 5-Volt Reference 1 Circuit
P0641
P0452
P0641
--
Intake Camshaft Position Sensor 5-Volt Reference 1 Circuit
P0641
P0340
P0641
--
Manifold Absolute Pressure (MAP) Sensor 5-Volt Reference 1 Circuit
P0641
P0107
P0641
--
Secondary Air Injection (AIR) Solenoid 5-Volt Reference 2 Circuit
P0651, P2432
P2431
P0651, P2431
--
Throttle Position (TP) Sensor 1 5-Volt Reference 2 Circuit
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P0122
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--
Throttle Position (TP) Sensor 2 5-Volt Reference 2 Circuit
P0651
P0222
P0651
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How to check the 5v reference circuit for short to ground Cadillac

Jun 10, 2017 | Cars & Trucks

1 Answer

2008 Colorado , Code: P2431


If you have no factory service manuals, you have to
google all codes- for any vehicle


Chevy Colorado OBD P2431

Sep 12, 2013 | Cars & Trucks

1 Answer

P2431 saturn ion


Why would you change fuel injectors?


Mail them away to be ultra sonic cleaned & tested only,
expensive proposition that was!

The MAP Sensor failed a test also?

I googled the P2431 & seems like a Secondary Air Injection
System Pressure Sensor ,hopefully that will get you close

Google it-- not easy to find some of those codes

Codes come back because you haven't found the fault
that set the code.

You working on things from yester year --not todays techology

Nov 26, 2012 | Saturn Cars & Trucks

1 Answer

Replaced air check valve and air pump 06 trailblazer 4.2 and error p2431 came back any help would be appreciated


The problem could be a connector, the wiring, or the sensor that is built into the solenoid valve mounted on the exhaust manifold.
The solenoid is a dealer part.
You may need a dealer mechanic with a scanner to track it down.

Aug 24, 2012 | 2006 Chevrolet TrailBlazer LT

1 Answer

I have a 2007 Chevrolet Trailblazer we have replace the secondary air injection pump and relay and the check engine light is still on. We have cleared the computer but comes back on after next start up....


P2432 secondary air injector system pressure Sensor circuit low. Have you check the air control solenoid valve itself? Also look for obstruction. It is listed as number 1 in the fiqure.10_2_2011_3_30_28_am.gif

Oct 01, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

HAVE A 2005 CHEVY TRAILBLAZER WITH P2432 CODE ?


Yhea it's under the truck on drivers side bolted to the transmisson crossmember. There are three 13mm headed bolts holding it on, they go up through the crossmember and bolt to the bottom of the bracket that is holding the air pump on. there are two hoses going to the pump that you need to take off and two electrical connectors. Then you will need to switch a few things over after you get the old one out. Not hard at all, Becarful when pulling the hoses off most of the time the reason they fail is because water has gotten in there, when you take the hoses off you get soaked(i speak from lots of unexpected showers).

Oct 17, 2009 | 2006 Chevrolet Trailblazer

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