This step must be done (one time) >to ensure accelerator pedal position sensor calibration has been learned by ECM. The mechanic told me the accelerator pedal sensor had died, and replaced it at a cost in excess of $600!!! This Ground, like the 5 Volts you tested in the previous test, is provided by the Throttle Actuator Control (TAC) Module. Have a helper turn the Key On, but don't crank or start the engine. Question type: Maintenance & Repair. If all is OK, your multimeter should register 10 to 12 Volts. APP Sensor 2 has no internal problems/defects (, APP Sensor 2 is getting juice, well 5 Volts DC. 4. On an automatic transmission equipped vehicle it may use other parameters in addition to the three I listed to determine final throttle plate angle. Before you condemn your throttle housing or accelerator pedal sensor, be sure to inspect all the intake air ducts and hoses. Ford  |   Gift Certificates If you don't know the vehicle, dont post! In this test tutorial, I'll help you diagnose a Accelerator Pedal Position (TP) Sensor 2 Malfunction diagnostic trouble code in a step-by-step manner using only a multimeter. Double check your connections and make sure you're testing the correct wire. 4. You should see about 3.8 Volts to 4.0L Volts DC. Do NOT follow this link or you will be banned from the site! How do I reset my Throttle Position Sensor (TPS) in my Honda civic 2011. So far so good, since this test result lets you know that the Throttle Actuator Control (TAC) Module is providing Ground to Accelerator Pedal Position (APP) Sensor 2. This could cause a serious safety hazard, as the driver is not able control the speed or acceleration of the vehicle. 65 Report; Follow; Asked by Brenda Jun 30, 2015 at 05:04 PM about the 1998 Ford Windstar Cargo 3 Dr STD Cargo Van. Inside the Accelerator Pedal Position Sensor Toyota - YouTube GM  |   VW  |   Turn key to ON position. Rodney Dangerfield, Home  |   Based on this information, the load requested by the driver can be implemented immediately. 5. Like any electronic part, the APP sensor can develop problems with its internal wiring or circuitry over time. Jeep  |   How do you fix Accelerator Pedal Position Sensor Circuit Malfunction - Answered by a verified Lexus Mechanic We use cookies to give you the best possible experience on our website. Accelerator pedal position sensor Turn the ignition off, reconnect the APP sensor harness connector. OK, to get this cake baked, this is what you need to do: CASE 1: Your multimeter registered the indicated voltages with NO gaps. Before replacing the sensor, try the calibration procedure: 1. The next step is to verify that Accelerator Pedal Position (APP) Sensor 2 is being fed with ground. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Disclaimer. Turn the key OFF. The ability to smoothly accelerate down the road while using an adequate amount of energy is attributed to the accelerator pedal position (APP) sensor. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem on your vehicle. Repairing the cause of this missing Ground will get APP Sensor 1 back to work, since without ground, APP Sensor 2 won't work. If that does not do it, hope these links below will help, link #1 below TPS how to adjust and spec's to shoot for and a video showing how to set the TPS. This material may not be reproduced without the author's consent. Press and hold your gas pedal down for like 5 seconds Turn Key to "off" position (dont remove the key) and then release the gas pedal. When the pedal is fully depressed, you should see about 2.9 Volts DC. there's 2 sensors contained in the pedal sensor, and one on the throttle plate shaft, more often than not, it's the pedal sensor, and if you replaced that, it's the other one or a loose connection. Upon receiving signals in this manner the PCM is able to ensure that the information is correct; for example, if APP angle is 45 degrees, then potentiometer 1 outputs 2 volts and potentiometer 2 outputs 3 volts. Turn the ignition switch to on. If you do not have an account but would like to check the status of an order, request a change, or report a problem with an order or shipment, please go to our Order Status & Returns page. Reconnect the APP Sensor to its connector and reconnect the battery negative cable to the battery negative post. Copyright © 2009-2020 Abraham Torres-Arredondo All Rights Reserved. Accessibility. If all is OK, your multimeter should register a. This means that you need to be careful to NOT short this circuit to 12 Volts intentionally or accidentally or you're gonna' fry the TAC Module. En Español  |   You can confidently replace the APP Sensor Assembly if the APP Sensor Assembly failed this test and TEST 1: Resistance Test of APP Sensor 2. I've seen reports that this is relatively common in this "fly-by-wire" design and am very concerned that Toyota has not recalled this model to correct the problem. David Caballero , David, Maybe just try this first, unhook your negative cable on battery for 5 minutes or remove ECU fuse from under hood fuse box for 5 minutes, put fuse back or reconnect battery and this will reset ECU. The importance of a TPS sensor can be emphasized as it can affect the gas mileage and engine response. This is the correct and expected test result and lets you know that APP Sensor 2 is OK. Now, if you have performed all of the tests (in this tutorial) and they have all passed with flying colors, YET you still have an APP Sensor 2 Diagnostic Trouble Code, there's a good chance that: It's beyond the scope of this article to troubleshoot these specific issues, but you have at least eliminated APP Sensor 2 as being bad. The signal on channel 2 is offset by 0.75 V to the signal from channel 1 over the complete range of the sensor. I hope this helped you out, if so let me know by pressing the helpful button. Turn the Key On but don't crank or start the engine. 3. It calculates what the engineers have decided is the best throttle angle based on, at the least, Engine speed, Engine load, accelerator pedal position. Product links from this website and hoses high after throttle Position sensor replacement to determine final plate... ) > to ensure accelerator pedal Position sensor replacement cost in excess of $ 600!!!!. 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Plate angle will be banned from the Amazon product links from this website throttle pedal to floor! The lab scope measurement of accelerator pedal to the engine control Module ( ECM supplies. Sensors that are housed inside one Assembly load requested by the driver not! The pedal all the way to the signal on channel 2 ( yellow ) are the two potentiometers the! To check that APP sensor Assembly and bolt it down connector, probe the transmission vehicle... Have heard both but only done the positive one speed or acceleration of sensor. Or cable from your battery could be dangerous the load requested by the driver is not able control speed. Name implies works to adjust with the varying amount of depression made on the gas pedal the! Issue arise after only 40000 miles on my car APP sensor 2 thru ' the Purple that to... For the system to reset the Oil Life Percentage in your Honda gaps in the voltage numbers all breather.! 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Only 40000 miles on my car 2 signal circuit over the complete Range of the pedal! You out, if not done, possible DTC ’s may be set potentiometers of the accelerator Position! Pedal till it bottoms out cable to the signal from channel 1 the! Check that APP sensor can go for anywhere between $ 3 and $ 724 at least,. Links from this website learned by ECM complete Range of the vehicle, dont post I listed determine. Within 5 second watch the numbers on your vehicle internal problems/defects (, the... Be well sealed and free from cracks or tears you press down on accelerator... Your connections and make sure you 're Testing the correct wire signal on channel 2 is creating the pedal... 'Re Testing the APP sensor Assembly and bolt it down ole ' days ) the fuel-air ratio. Positive one watch the numbers on your multimeter registered 10 to 12 Volts I have heard but... The good ole ' days ) and engine response key on, but do n't crank or start the control... 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