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Engine light came on, code is P2121

Engine light came on, code is P2121

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  • jonesspammai Jun 06, 2010

    I checked all the available OBDII "P" codes and found none over the 1900s, can you verify the code?

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Toyota fault code p2121


throttle position sensor

follow the link for more info
See link below. The info is for a Highlander but the car appears to have the engine.

http://highlanderclub.ru/files/manua...4h/cip2121.pdf

Jan 07, 2015 | Toyota Camry Cars & Trucks

1 Answer

Hi I have a 04 Camry and have a p2121 code TPS /apps sensor problem I wonder how u can nail down with parts is wrong or how to fix the problem?


Sometimes these codes are correct about the problem and sometimes they aren't, I ould suggest getting a service manual for a 2004 Camry and following the directions in it to find out for sure. Service manuals are helpful and have helped me fix problems before.

Nov 28, 2013 | Cars & Trucks

2 Answers

04 Dodge Ram 2500 5.9 Cummins Loss of throttle, truck still runs happens intermittenlty Codes P2122 , P2121 and P2509


I do not have Cummins codes so I would consider replacing the injectors or taking it to a Cummins service centre to have it fixed as the parts will not be cheap if not diagnosed correctly

Nov 16, 2013 | Dodge Ram 3500 Cars & Trucks

2 Answers

How to reset engine lite in dash


Check engine light comes on and off, these are indication that there is some error code stored in your vehicles ECM. The engine module computer needs to be scanned. These will give the code and as per the error code the further problem can be detected and confirmed. The engine light indicator blinks or remains steady on dash when engine computer noticed any problem with any engine electrically operated components.


For more help, I suggest you to refer the help links provided below. These will let you know more about which areas to look, check, when there is engine light coming up on dash panel.

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Click the link below: -------


Check Engine Light Reset Procedure?

http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html

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Check Engine Light ON?

http://whoisbyme.blogspot.in/2012/06/check-engine-light-on.html

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Intermittent Check Engine Light?

http://whoisbyme.blogspot.in/2012/06/intermittent-check-engine-light.html

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WHY Check Engine Light On car?

http://schematicsdiagram.blogspot.com/2011/06/check-engine-light-on-car.html

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Check Engine Light, VSC light and Traction Control Light ON?

http://whoisbyme.blogspot.com/2012/06/check-engine-lightvsc-light-and.html

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Check engine light flashing?

http://technoanswers.blogspot.in/2012/02/check-engine-light-flashing.html

Service engine soon Light Turned OFF after Jump Start?

http://whatisbyme.blogspot.in/2012/06/service-engine-soon-light-turned-off.html

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After replacing throttle body the Check engine light starts blinking?

http://technoanswers.blogspot.com/2012/01/after-replacing-throttle-body-check.html

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2005 Chevy Impala: Service Vehicle Soon Warning Light?

http://whoisbyme.blogspot.in/2012/06/2005-chevy-impala-service-vehicle-soon.html

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Malfunction Indicator Light ON

http://whoisbyme.blogspot.in/2012/06/malfunction-indicator-light-on.html

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Check power-train message with orange engine light came on?

http://howtobyme.blogspot.in/2012/02/check-power-train-message-with-orange.html

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2007 Toyota Highlander Hybrid: Yellow Check Engine Light ON dash?

http://whatisbyme.blogspot.in/2012/05/2007-toyota-highlander-hybrid-yellow.html

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1999 Toyota Tacoma: Check Engine Light Read Code P0171?

http://whatisbyme.blogspot.in/2012/05/1999-toyota-tacoma-check-engine-light.html


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Car Runs Fine But Check Engine light is ON?

http://whatisbyme.blogspot.in/2012/05/car-runs-fine-but-check-engine-light-is.html

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Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

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How to Read Codes from Check Engine Light?

http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

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Vehicle smog test failed Due to NO MIL/check engine light?

http://schematicsdiagram.blogspot.com/2011/12/vehicle-smog-test-failed-due-to-no.html

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OBD Code is cleared but check engine light will not RESET?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html

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Car jerks while going uphill and Check engine light is ON?

http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html

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Toyota Camry Check engine light flashes while driving?

http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-check-engine-light-flashes.html


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These details will help.

Thanks.

Nov 28, 2012 | 1999 Acura CL

1 Answer

P2121 obd2 code for toyota camry 2003


The P2121 means Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance.
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autel maxidas ds708

Nov 05, 2012 | Cars & Trucks

1 Answer

P2121 and p2122


P2121 Code is throttle/pedal position sensor/switch D circuit range/performance
P2122 throttle/pedal position sensor/switch low circuit
Bad pedal maybe, does it return to idle?

Jun 05, 2012 | Cars & Trucks

1 Answer

I have a 2004 Dodge Ram 3500 why do codes p0483,0541,0243,2121,2127 keep coming up what do these codes keep coming up


To get the meanings of these codes go to
http://www.obdii.com/obdii.html
P2121 - Check with dealer on this code
P2127 - Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage
P0483 - Cooling Fan Rationality Check Malfunction
P0243 - Turbocharger Wategate Solenoid 1
P0541 - Air Intake Heater Circuit Low
If you are located near a National Auto Parts store (AutoZone, Pep Boys, etc.) I would take the truck in and have them run diagnostics.
Let me know if you have any other questions. Thanks.

Apr 14, 2011 | 2004 Dodge Ram 3500 Truck

1 Answer

I have a 2008 Nissan Frontier. The truck will start but goin no where. 2 codes appeared p2121 & p2138. How do i fix without the dealer?


P2135 and P2138 relate to the rationality of the redundant throttle position sensors or the accelerator pedal position sensors. If the relative voltages of the sensors do not match throughout the range of movement, a code will set. This will generally keep throttle control below 1800 rpm. You want to keep the dealer out of this issue, however unfortunately, the dealer has more advanced diagnostics that can pinpoint which sensor is causing the code set. Some, more progressive, repair shops also have better diagnostics than say the standard OBD II, which will not throughly diagnose. You will need to determine which of these sensors is casuhing the code set in order to effect repair. Good Luck! I hope you find this to be very helpful!

Feb 14, 2010 | 2007 Nissan Frontier SE Crew Cab

4 Answers

On a 04 camry with 2.4 ltr engine, can I replace just the throttle position sensor or do i have to replace the entire throttle body? The engine code said faulty throttle body.


I think the terms "Throttle Positon Sensor", TPS and "Throttle Body" can be misleading at least in regards to the 04 Camry.

My 04 Camry gave a diagnostic reading of P2121 for my problem "Throttle PEDAL position switch D circuit". However, we changed out the complete Throttle Body/TPS (Toyota Part #22030-0H020) that did NOT fix problem.

The 04 Camry TPS Electronic Module "Throttle Positon Sensor" is factory assembled and riveted to the side of the throttle body. The only way to service/inspect it would be to cut off or drill out the rivets. Not sure you could open the darn thing if you got it off, but that seems to be the only way Toyota sells them!!

Hopefully a new Throttle PEDAL Position Sensor (Toyota Part # 78010-33010 PEDAL ASSY, ACC)
will fix it. This is located under the dash near the accelerator pedal.

So, now I would recommend FIRST to replace the "Throttle PEDAL Positon Sensor" (it is much, much cheaper) and then the Throttle Body/TPS assembly!! Unless of course, you get a diagnostic code as you did for "faulty throttle body!!


Nov 12, 2009 | 2004 Toyota Camry

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