Question about 2008 GMC Yukon

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What do codes B2AAA and B2A00 mean?

I can not find these codes, could they be pulling due to the code P0121 also coming up? Also what is the best option to start with on the P0121 code to fix it? I have been told by some to clean the throttle body and others to replace the sensor.

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  • GMC Master
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This is a rheostat. It wears out. You should replace the TPS.

Posted on May 02, 2014


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Posted on Jan 02, 2017

  • 182 Answers

SOURCE: 1996 GMC Sierra 1500 truck fuel problem

Have you check the injector relay or maybe a fuse for injectors.

Posted on Aug 27, 2008

  • 61 Answers

SOURCE: Check engine light is on and high idle (1500rpm)

Some times the E.G.R. will stick half open. This will make the engine surge or have high idle. Try replaceing the E.G.R. located under the upper intake. Do not go with after market E.G.R. The spring in them are to powrefil and the E.G.R. wil not open. Also try replaceing the O2 sensors. This could give the engine more fuel thus a higher idle. Some vehicles the T.P.S. can be ajusted, do some checking to see if yours is adjustable.

Please contact me if your problem presists.
Thanks, Charlie

Posted on Feb 03, 2009

SOURCE: My gmc envoy idles rough and the ses light pop on with a p015

See or call your local auto parts store such as AutoZone or O'Reillys for the trouble code definition. Also, make sure your gas cap is really secure, and I mean tight.

Posted on Apr 23, 2010

SOURCE: Code P0121 on 2006 GMC

Classic signs of idle air control not able to cope with sudden engine loads. Cleaning should resolve this. Remove ducting from air cleaner to throttle entrance. Spray with carb. choke cleaner or WD40 spray and wipe back to the alloy finish. clean the the throttle plate and push the throttle open with your fingers and clean in behind as best you can. Clean the passageways to the idle air control valve. Remove the valve and give it a thorough clean up. Reassemble and it should all be good.

Posted on Nov 11, 2010

SOURCE: 2003 GMC Sierra Has recently developed

You never replace anything, on a Wishing,Hoping,Pushing,Poking,diagnostic approach

You learn the vehicles Systems,Test,then Replace,if you have a failed component.

Work on the Misfire Issues.
Then you lean O2 Codes will go away.

Not a the plugs.

Think lean---Vacuum leaks,EGR Valve leak,EVAP System leaks,anything with a hose that lets air into the intake system.
Exhaust System leaks,near sensors

Posted on Nov 24, 2010

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B2aaa code 2006 cobalt suddenly showed up.

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What can cause the check engine light to be on?

Circuit Range Performance error.

When is the code detected? Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P0121 CHEVROLET Description The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

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Fault codes p0106, p0121 daewoo lanos 2002 1.6i sport

Definition of Diagnostic Trouble Code P0106 Category: Powertrain Definition: Manifold Absolute Pressure/Barometric Pressure Circuit Range/PerformanceNote: This definition of P0106 is applied to all manufacturers
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What does the trouble code b2aaa for a 2012 chevy cruze mean it just says undefined on my code reader

this could relate to the OBD code P0672 , which is for #2 glow plug , is your vehicle a diesel ?if not i can only suggest giving a Chevvy dealer a ring and ask them ,as must be a chevvy based code for the own diagnostic equipment

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Whats mean the code B2AAA for 2009 Mini cooper s Thansk

it means this P0420, make appointment for service, should come out like this code but if you out of service do this remove BCM (Body control module), PCM, ECM tcm FUSEs, waited 30 mins, the reconnect them and put battery back on, or if you don't want to do that take the battery off, then go inside the car and turn the ignition on and the lights and anything ells you can turn on. they won't work but they will drain the voltage stored in them, leave like this for 15-40 min and then reconnect the battery should be back to normal. but turn every thing off again before putting the battery back on.

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1 Answer

Could P0121 and P0430 codes be comming up due to other issues with my truck?

You need to study OBD Systems

You & the rest of the world have a hang up about
clearing things & believes that is a repair or fix,it is not

You have 8 monitors that have to run

When you clear the check engine light, you clear ALL DATA,
now you have nothing to use to diagnose your problems, until
the monitors run again

You find codes using Google

OBD PO420/430--- failed exhaust converter

Have to find out why & fix the issue or it fails again

You have no vehicle,motor,etc shown here

Codes have nothing to with replacing parts-lesson #1

All code related issues have to be component tested, just
to find a problem,anything,correct that & move on

You have the code reader, why would you remove a battery cable?

Once that cable comes off, the data is gone, no waiting 30 min

I guess your asking about PO420 /PO430

I have no idea how old the vehicle is
Exhaust converters should last 14 years or more

With the 2000 & newer vehicles, people do absolutely
nothing & ruin them is 4 to 6 years, from basically lack of
knowledge & neglect

Your codes are coming back, because when you drive
7 of the 8 Emission Monitors run again,you have not made the required repairs & the computer see's the out of range parameters
& your back to square one.

Lesson #2 You not gonna ever replace any parts-- until you
know how they work & how to test them

You do not want to replace good parts with new for no reason

Aug 16, 2014 | Cars & Trucks

1 Answer

I had a code P0121. I bought the sensor and had it replaced, now the code still won't clear. I need an inspection ASAP but the check engine light is still on.

I should start by saying a trouble code does not mean a component must be replaced. It only means the signal from the sensor is out of range or the affected circuit needs to be checked out.
Code 121 means the signal from the TPS is either out of range or not where the computer thinks it should be. Such as the TPS tells the computer the throttle is closed when it is actually open.
You would need to use a scanner to see the data coming from the sensor to tell if it is working or not. The problem could be the throttle or the wiring back to the computer.

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Whats p0121 solution?

code p0121 refers to throttle position sensor(TP) A/ accelerator pedal position (APP) sensor A --range performance problem===causes---accelerator cable adjustment---TP/APP sensor ---wiring
check that the cable is not broken and/ or replace the sensor.

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2007 Chevy Tahoe code p0121

Due to low voltage earlier, I would reset the ECU and keep an eye on any codes for a few miles.

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