I would like to be reimbursed by gm for the expenses this malfunction has caused. The throttle Position (TP) sensors 1 and 2 are potentiometer type sensors each with 3 circuits. Gm wants 150 just to plug it into their computer to tell me what I can get down for free with my buddies code reader. currency: USD; availability: In Stock; category: Auto Parts > Air Intake Fuel Delivery > Inject Controls, Parts; condition: New; Returns. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem on your vehicle. WVE . The Accelerator Pedal Position sensor is inside the Accelerator Pedal Assembly. Engine throttle is inconsistent When you press down on the gas pedal, your engine should respond directly and instantly. Your digital multimeter must have a bar graph to accurately test APP Sensor 1 in Ohms mode. The Throttle Actuator Control (TAC) Module is bad. … What are the symptoms related to a bad throttle position sensor? 2008-2009 Cadillac CTS Accelerator Pedal W/ Position Sensor OEM 10379038. Not sure if the accelerator pedal assembly or the APP sensor fits your particular vehicle? This direct replacement accelerator pedal position sensor matches the fit and performance of a failed original equipment sensor to restore proper vehicle operation. Rodney Dangerfield, Home  |   Just out of curiosity, why do you … Oct 22 2013, 7:00pm. APP Sensor 1 -Reference Low (Ground) Circuit. WVE . A Chevy Malibu accelerator sensor lawsuit alleges the cars are equipped with defective accelerator pedal position sensors and/or faulty electronic throttle … Now, manually push down the accelerator pedal till it bottoms out. . VW  |   Of all the sensors on the engine, the throttle position sensor is the only one that communicates driver input to the computer. Car won’t accelerate, lacks power when accelerating, or accelerates itself It may feel as though the car simply doesn't accelerate as it should, and jerks or hesitates as it picks up speed. Remove the faulty sensor from the throttle chamber. You should see about 3.8 Volts to 4.0L Volts DC. And so, I want to assure you that the key, to successfully diagnosing an Accelerator Pedal Position (APP) sensor problem on your own, is remembering that the APP Sensor(s) inside the Accelerator Pedal Position Assembly are just potentiometers (like the old style Throttle Position Sensors on Fuel Injection Systems with a throttle cable). I replaced pedal and the issue of reduced engine power has not come back yet (3 weeks). When you press down on the gas pedal, your engine should respond directly and instantly. … Chrysler  |   You can buy the APP Sensor just about anywhere since all national (and local) auto parts stores carry them (AutoZone, O'Reilly Auto Parts, etc.). With the sensor, there come the accelerator pedal position sensor problems as well. Mitsubishi The accelerator pedal position (APP) sensor 1 and the APP sensor 2 are potentiometer type sensors, each with the following circuits: • A 5-volt reference circuit • A low reference circuit • A signal circuit The control module provides the APP sensors with a 5-volt reference circuit and a low reference circuit. to smoothly accelerate down the road while using an adequate amount of energy The automotive trouble code P2138 throttle/pedal position sensor/switch D/E voltage correlation refers to a problem related to the throttle's ability to open and close properly. anybody know the gm part # for the accelerator pedal position sensor? That APP Sensor 2's signal decreases from above 3.9 Volts at 0% pedal travel to below 2.9 Volts at 100% pedal travel. CHEVROLET > 2008 > TRAILBLAZER > 4.2L L6 > Interior > Accelerator Pedal Position Sensor. Accelerator Pedal Position Sensor, Replacement, GM/Hummer, Pickup/SUV, Each. (1999-2006 V8 Silverado, Sierra, Suburban, Tahoe, Yukon), "Behind every successful man is his woman. Here are some common symptoms of a bad or failing throttle position sensor to watch for: 1. The throttle position sensor (TPS) is part of your vehicle's fuel management system and helps ensure that the correct mixture of air and fuel is delivered to your engine. The TAC module is damaged. Accelerator Pedal Position (APP) Sensor 2 passed the resistance test with flying colors (, APP Sensor 2 is getting power in the form of 5 Volts. When testing the circuit, you should back-probe the connector or probe the wire (with a wire-piercing probe), or you could damage the metal female terminal! How To Test The GM Accelerator Pedal Position (APP) Sensor 1, How To Test The GM Accelerator Pedal Position (APP) Sensor 2, Resistance Specifications Of APP Sensor 1, APP Sensor 2, GM Electronic Throttle Body Circuit Descriptions And Testing Tips, Cleaning The GM Electronic Throttle Body (4.8L, 5.3L, 6.0L), P0120 TP Sensor 1 Circuit Malfunction (With Electronic Throttle Body), P0220 TP Sensor 2 Circuit Malfunction (With Electronic Throttle Body), Resistance Specifications Of The TAC Electronic Throttle Body, Sensor 1 de la Posición del Pedal del Acelerador (GM 5.3L, 6.0L). Nissan  |   When the throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe.There is a strong possibility of engine misfires, and the check engine light will come on. Testing both of these APP sensors simply involves testing the resistance between two terminals as the pedal is depressed and released. Of all the sensors on the engine, the throttle position sensor is the only one that communicates driver input to the computer. So far no issues in 45 days. I remember when GM electronic throttle body equipped vehicles started rolling into the auto repair shop, where I worked, and feeling a bit nervous about having to diagnose them (to later realize just how easy it is to diagnose them!). Disclaimer. There is a factory service bulletin for the following Chevrolet … It's mission is to afford greater control over the emissions, fuel economy, traction … Most modern cars have a sensor known as the accelerator pedal position sensor which tells the computer in the car how much fuel to send to the engine. This includes an accelerator pedal position sensor, which tells the powertrain how much acceleration the driver requests. Estimated Ship Date: 3/9/2021 if ordered today. Envoy $34.95 . The most recently reported issues are listed below. Let's take a look at what your test results mean: CASE 1: Your multimeter registered 10 to 12 Volts. Connect the red multimeter test lead directly on the battery's positive terminal using a battery jump start cable. This Ground is provided to APP Sensor 2 thru' the Purple that belongs to circuit letter B (see photo above). ", Home  |   Throttle Position Sensor Problem On Chevrolet Silverado. However, when a problem with the APP sensor exists, the vehicle' VW  |   Faulty accelerator pedal position sensor How is the P2135 CHEVROLET code repair? On August 28, 2019, GM issued a Special Coverage Adjustment (#N182188250-01) that may have been designed to address the issue regarding the Engine Power Reduced mode on Chevy Malibu vehicles. That APP Sensor's 3 signal decreases from above 3.2 Volts at 0% pedal travel to below 3.1 Volts at 100% pedal travel. It's mission is to afford greater control over the emissions, fuel economy, traction … P0121 – Throttle position (TP) sensor A/accelerator pedal position (APP) sensor / switch A -range/performance problem. Vehicle-specific spare … Each one has separate signal, Ground, and 5.0 volt reference circuits. Chrysler  |   Any ideas? Ordered this part, it took maybe 10 minutes to install, and the problems have all gone away. The throttle position sensor (TPS) is part of your vehicle's fuel management system, and helps ensure that the correct mixture of air and fuel is delivered to your engine. APPS- accelerator pedal position sensor, any problems? ACDelco GM Original Equipment Accelerator Pedal is a GM-recommended replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. At the time, the fix was … That the Accelerator Pedal Assembly is made up of 3 individual Position Sensors. The most recently reported issues are listed below. Dorman 699-107 Accelerator Pedal for Select Buick / Chevrolet Models, Black. Jul 12 2013, 3:13pm. Don't worry. Replaced the throttle body, pedal sensor, and wiring harness without any success. The dealership will have to update the computer and, in some cases, replace the throttle position sensor or complete throttle body. Let's turn the page and let's get testing. Re: APPS. What does this mean? From what I have read gm knows about this problem but has not done a recall on this. GMC vehicles started using throttle position sensors in the mid 1980s when computerized engine controls were introduced. Honda  |   Apply a few drops of anti-stick solution to the tip of the replacement throttle sensor and install it in the throttle chamber. Estimated Ship Date: 3/9/2021 if ordered today. CASE 2: Your multimeter DID NOT register 10 to 12 Volts. Please also check out the statistics and reliability analysis of the 2018 Chevrolet Malibu based on all problems … This factors into fuel efficiency, how much power the car uses when you press down on the pedal … If you've got a accelerator pedal agree disagree problem chances are that's a break in the throttle body connector cable and not this part causing your problems. Copyright © 2009-2020 Abraham Torres-Arredondo All Rights Reserved. Jeep  |   This indicates that, on some vehicles, the code may point to a problem with the accelerator pedal position (APP) sensor, rather than the TP sensor. Special Coverage Adjustment N182188250 Loss of Continuity within Accelerator Pedal Position Sensor Circuit 2. No … Pedal Position Sensor Problem. The most important tool that you're gonna' need is a multimeter. The good news is that Dorman part number 699-207 an exact replacement can be purchased for 63.00 from Extreme Diesel Power or other on-line vendors (11/2017). View Profile View Forum Posts Private Message Beyond Help Join Date Aug 2008 Location Newington, CT Posts 3,824 Post Thanks / Like . 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. Add to Cart Add to Cart … However, when a problem with the APP sensor … $67.00 + shipping. Gas Pedal Pad Replacement fits Many Compatible with Chevy GMC Repair Kit See Listing for Application Details . And so, I want to assure you that the key, to successfully diagnosing an Accelerator Pedal Position (APP) sensor problem on your own, is remembering that the APP Sensor(s) inside the Accelerator Pedal Position Assembly are just potentiometers (like the old style Throttle Position Sensors on Fuel Injection Systems with a throttle cable). This material may not be reproduced without the author's consent. The P2138 trouble code is triggered when there are problems with the throttle/pedal position sensor/switch. Depending on whether your specific vehicle uses all 3 APP Sensor's or not, the APP Sensor Assembly's electrical connector could have 6 or 9 wires sticking out of it (whether the APP Sensor Assembly has 6 or 9 wires sticking out of its connector or not, this tutorial applies to them both). When you press or let off the gas pedal, it sends that data to the vehicle's engine control unit (ECU) to be relayed to the fuel system and throttle body. The next step is to check that APP Sensor 2 is creating the correct pedal position signal. You'll see the message center display: ‘Reduced Engine Power’ (and of course the engine will operate in Reduced Engine Power mode). With the APP Sensor Assembly connected to its connector, probe the. Unfortunately, this part can't be repaired, so when a certified mechanic diagnoses that there is a problem with this device, you'll have to replace the accelerator pedal position sensor. The throttle position sensor is one of the most crucial components of any fuel injection system, right after the computer and fuel injectors in terms of importance. The vehicle is a 2004 Chevrolet Suburban. Repair Information for P2135 Chevrolet code. Driving down the road, when all of a sudden "reduced engine power". I would like to know why gm did not do a recall for my 2006 Cts? This diagnostic trouble code (DTC) is a generic powertrain code. Then she told me the truth: that she was seeing a psychiatrist, two plumbers, and a bartender." When the Accelerator Pedal Position (APP) Sensor 1 goes bad, you're gonna' see the following symptoms: A generic scan tool is a handy (and a must have) tool to read diagnostic trouble codes and view some of the Live Data parameters it provides, but it's not gonna' help you to dynamically test APP Sensor 1. Reconnect the APP Sensor to its connector and reconnect the battery negative cable to the battery negative post. Easy to use parts catalog. Jul 12 2013, 3:03pm. Chevy Truck Forum | Silverado Sierra GMC Truck Forums . How To Test The GM Accelerator Pedal Position (APP) Sensor 2, TEST 4: Testing The APP Sensor 2 Signal Circuit. If all is OK, your multimeter should register a. By Reinier Last Updated 2016-05-25 Automobile Repair Shop Owner Nissan  |   Standard Motor Products APS105 - Standard Motor Accelerator Pedal Sensors. Mechanic's Assistant: Have you scanned the code? The P2135, P2136, P2137, P2139, and P2140 DTCs also indicate issues in the same areas. Do NOT follow this link or you will be banned from the site! Accelerator Pedal Sensor problem of Chevrolet Suburban. Almost gone. Ok, Check this out--Monday I changed out my accelerator pedal position sensor-2005 Chevrolet Silverado 1500. Other issues have recently shown back up (not starting sometimes, stuck in 4th gear). As the throttle moves, a voltage signal ranging from 0.5 volts to 5.0 volts is sent to the engine computer. Have a helper turn the Key On, but don't crank or start the engine. Standard Motors APS136 Accelerator Pedal Sensor… also, I am grateful my wife and I was able to pull over out of the flow of traffic. GM  |   Two problems related to accelerator pedal sensor have been reported for the 2018 Chevrolet Malibu. The accelerator pedal position sensor was replaced. P0221 – Throttle position (TP) sensor B/accelerator pedal position (APP) sensor / switch B -range/performance problem. $79.99. 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. The Accelerator Pedal Position (APP) sensor is made up of 2 sensors that are housed inside one assembly. Also please check out the statistics and reliability analysis of Chevrolet Tahoe based on all problems … Do NOT follow this link or you will be banned from the site! En Español  |   But if you need to save some bucks, check out the link on the right. When you press or let off the gas pedal, it sends that data to the vehicle's engine control unit (ECU) to be relayed to the fuel system and throttle body. On this page we will explain the principle according to which modern pedal travel transmitters operate, and which symptoms indicate a fault in this sensor. Jeep  |   Seller 98.6% positive. This original equipment pedal will provide the same performance, durability, … If your GM pickup (SUV or van) has the mechanical throttle body (with an accelerator cable) and you need to test the throttle position sensor (TPS), then the article you may need is this one: TPS Test. 1. Page 3 of 4 On Malibu (LFV engine) applications only, inspect the engine wire harness adjacent to the heater inlet hose for contact with the heater inlet … Have you tried to reset it? Jul 12 2013, 3:06pm . The actual pedal an box Re: APPS. (. Once you get to the site they'll ask you for the particulars of your vehicle and they'll check it fits. Search Codes; Find a Shop; Auto Test Game; 2021 Vehicles … 4. In the 1990's automotive manufacturers began industry-wide installation of "Drive by wire" throttle control technology. 6) Problems … In an ETC system, the control module uses a pair of APP sensors as a primary input for control of the throttle motor/ throttle blade. This is where a Wire Piercing Probe comes in handy since it'll let you easily access the wire inside the insulation (to see what this tool looks like, click here: Ground the multimeter's Black lead directly on the battery's negative terminal. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins. The Fluke 115 digital multimeter has a bar graph... to see it, check out this article: As I mentioned above, you don't need to use a generic scan tool to take advantage of the test info in this tutorial, but it does come in handy to read any trouble codes. $99.99 previous price $99.99 + shipping. You may experience slow acceleration, acceleration surge at both high and low speeds, hesitation or delay in acceleration, and other related symptoms. I told her I was seeing a psychiatrist. Analog multimeter or a digital multimeter with a bar graph. The TPS signal is continually measured and combined many times per … Dorman Products - 699-105 : Accelerator Pedal Position Sensor. And so, I want to assure you that the key, to successfully diagnosing an Accelerator Pedal Position (APP) sensor problem on your own, is remembering that the APP Sensor(s) inside the Accelerator Pedal Position Assembly are just potentiometers (like the old style Throttle Position Sensors on Fuel Injection Systems with a throttle cable). In case you didn't know, you don't have to buy the whole Pedal Assembly with the sensor attached if you don't have to. Here is a more detailed list of the most common symptoms of a bad accelerator pedal position sensor. Dorman 20787 Brake Pedal Pad for Select Models. That APP Sensor 1's signal increases as the accelerator pedal is depressed, from below 1.1 volt at 0% pedal travel (pedal at rest) to above 2.1 Volts at 100% pedal travel (pedal fully depressed). . A couple of people posted that their local chevy dealership covered the repair even though their cars were no longer under warranty. So after some research I changed out my throttle body and … https://easyautodiagnostics.com/gm/4.8L-5.3L-6.0L/app-sensor-tests-1 I changed my throttle position sensor in a 2008 Silverado 5.3 and now my engine is on reduced power its also telling me I need to service my stabilitrack and traction control. for makes: Saturn, Gm; type: Accelerator Pedal Position Sensor; types: Sensor; General. Based on this information, the load requested by the driver can be implemented immediately. An accelerator sensor may fail due to heat from the firewall. This is a headache you definitely want to avoid. Jul 12 2013, 3:17pm. The accelerator pedal position sensor tells your throttle body how far to open. (1999-2006 V8 Silverado, Sierra, Suburban, Tahoe, Yukon), P0342 -What Does It Mean? Light goes off-truck screams down the road. In the 1990's automotive manufacturers began industry-wide installation of "Drive by wire" throttle control technology. This Ground, like the 5 Volts you tested in the previous test, is provided by the Throttle Actuator Control (TAC) Module. Help; Remember Me? Yesterday afternoon get in the truck drive about 5 miles light comes back on so … Double check your connections and make sure you're testing the correct wire. APP Sensor 2 has no internal problems/defects (, APP Sensor 2 is getting juice, well 5 Volts DC. Buy online or call toll free. Although somewhat related and seemingly similar, these codes will differ in their … I know this tutorial doesn't cover all of the possible malfunctions, so if you have recently solved an APP Sensor dilemma and want to share your troubleshooting and repair solution with the rest of us here in internet land, you can use the contact form below: If this info really saved the day, buy me a beer! Throttle position sensor? 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 & … Sensor resistance (circuit voltage) varies according to the position of the throttle plate (TPS) or accelerator pedal (APP). Seller 99.6% positive . 1. We offer high quality new, OEM, aftermarket gmc accelerator pedal sensor parts. CMP And CKP Sensor Circuit Diagram (1999-2006 V8 Silverado, Sierra, Suburban, Tahoe, Yukon), P0343 -What Does It Mean? Dorman 20787 Brake Pedal Pad for Select Models. GM  |   You’ll notice that the code also mentions a pedal position sensor. WVE {Click Info Button for Alternate/OEM Part Numbers} without Power Adjustable Pedals. Misc Index  |   Ford  |   ACDelco GM Original Equipment Accelerator Pedal is a GM-recommended replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. If you've done any type of research (before finding this tutorial), you probably already know that: Now, before I dive right into the tutorial, let me tell you that this tutorial complements several other tutorials (which are also found here at easyautodiagnostics.com): Puedes encontrar este tutorial en Español aquí: Sensor 1 de la Posición del Pedal del Acelerador (GM 5.3L, 6.0L) (en: autotecnico-online.com). Hi I have problems with a code that it said p2123 throttle / pedal position sensor / switch D circuit high its 2004 gmc envoy 4.2. Since they are just potentiometers, they can be resistance tested with a multimeter (like TEST 1: Resistance Test of APP Sensor 2 shows) or voltage tested (like TEST 4: Testing The APP Sensor 2 Signal Circuit showed). 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 anti-stick solution will make it easy for you to remove the TPS in case you need to replace it again. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. April 10, 2013. engine light was on and that is the code it threw so I replaced the part. If it doesn't fit, they'll find you the right one. type: Money Back ; paid by: Buyer; policy: returns accepted; details: Returns are subject to a 20 percent restocking fee. Ford  |   En Español  |   For about 6 months I have been fighting this problem. The TPS provides the most direct signal to the fuel injection system of what power demands are being made by the engine. Suzuki  |   As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. Disclaimer. to vehicles equipped with V8 engines may have condition where the throttle position sensor may cause the engine to run rough and cause the malfuntion indicator lamp/or engine reduced power message to illuminate. Observe your multimeter's voltage DC reading. Each individual sensor completes a particular circuit. Your car hesitates to move when the gas pedal is pressed Check engine light will be lit on your instrument cluster. When the throttle pedal moves, the throttle sensor also moves in direct response to the driver commands. Replacing The Throttle Position Sensor. Ok, Check this out--Monday I changed out my accelerator pedal position sensor-2005 Chevrolet Silverado 1500. Resistance Specifications Of APP Sensor 1, APP Sensor 2. There's an ‘open’ on this wire between the APP Sensor Assembly's connector and the Throttle Actuator Control (TAC) Module. The APP sensor assembly is the component that lets your Chevy TrailBlazer or GMC Envoy's fuel injection computer know how much you have stepped on or off the accelerator pedal. General Motors released an ECU update in the late 2000's which fixed a discrepancy in the programming. Market and technology leader for accelerator pedal sensors; Precise position measurement with HELLA CIPOS technology; Extensive applications expertise thanks to production experience gained since 1996; Extensive quality checks to ensure high quality Over 175,000,000 accelerator pedal sensors already installed MORE INFORMATION ABOUT OUR ACCELERATOR PEDAL SENSORS. 2. GMC OEM NEW Accelerator Pedal Pad w/Position Sensor 07-11 Chevrolet 25832864. Dorman 699-107 Accelerator Pedal for Select Buick / Chevrolet Models, Black. Part Number: RNB-699-102. The engine may be turning off (this is done/determined by the PCM). A faulty throttle position sensor will not let your car accelerate normally. Behind the fall of a successful man is usually another woman. Your multimeter can either be a digital multimeter (with a bar graph) or an analog multimeter. GM Sensors have traditionally been outsourced to overseas manufacturers, the same ones who supply throttle position sensors to other makes like Ford and Toyota. ACDelco 25832864 GM Original Equipment Accelerator Pedal with Position Sensor in Pedals & Pedal Accessories. OK, to get this cake baked, this is what you need to do: CASE 1: Your multimeter registered the indicated voltages with NO gaps. What's New? Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem on your vehicle. Asked by kimkingtaylor in Houston, TX on . If you don't own a scan tool yet, I recommend taking a look at these 2 articles I've written: These are: ratchet wrench, sockets, etc., that you'll need to remove and replace the Accelerator Pedal Position (APP) Assembly if Accelerator Pedal Position (APP) Sensor 1 is bad. The three wires (circuits) that we need to be concerned about (to test APP Sensor 1) are: Below, you're gonna' find a table (chart) with the job description of each of the wires that stick out of the accelerator pedal's electrical connector. I have 2005 chevy 1500HD with a 6.0 in it. NOTE: There's a good chance that the colors of the wires described below may not match what's on your specific vehicle AND this is no cause for concern since the circuits are the same regardless of the color of the wire. The automotive trouble code P2135 throttle/pedal position sensor/switch A/B voltage correlation refers to a problem related to the throttle's ability to open and close properly. Forum; FAQ ... anybody know the gm part # for the accelerator pedal position sensor? Standard Motors APS136 Accelerator Pedal Sensor. CASE 2: Your multimeter DID NOT register the indicated voltage and/or showed gaps in the voltage numbers. This is not good and tells you that APP Sensor 2 is malfunctioning. Copyright © 2009-2020 Abraham Torres-Arredondo All Rights Reserved. Start by checking the "Possible Causes" listed above. The problem from what I have read has something to do with the accelerator pedal position sensor or throttle body. 3. Go to: TEST 4: Testing The APP Sensor 2 Signal Circuit. Upon taking the Chevrolet Malibu back to the dealership, technicians found it needed a new accelerator pedal position sensor. How To Test The GM Accelerator Pedal Position (APP) Sensor 2. The link is for buying the APP Sensor only and not the entire Pedal Assembly (with sensor). Customer Question. Though this doesn’t happen all the time. One of the more frequent problems with modern vehicles is a bad throttle position sensor (TPS). Made of quality materials for a reliable service life. Isuzu  |   Asked by kimkingtaylor in Houston, TX on . Partsgeek offers replacements for the Envoy, Sierra 1500, Acadia, Yukon, Sierra 2500 HD, Yukon XL 1500 plus more. I called my local chevy dealership and they … One day it decided to go into reduced engine power "limp" mode. Slizzo. If you haven't done so already, install the APP Sensor Assembly and bolt it down. If all is OK, your multimeter should register 10 to 12 Volts. The most common symptoms of a bad accelerator pedal position sensor are unresponsive throttle, check engine light, gear shifting problems, and engine performance problems. Lack of power when accelerating the engine. Misc Index  |   Suzuki  |   Now, although it's beyond the scope of this tutorial to troubleshoot the problem with this Ground, but here are the two most like causes: What we need to do now is to see if APP Sensor 2 is producing a voltage signal. WVE {#19121979, 280130, SU9417} with Power Adjustable Pedals. Accelerator pedal position sensor Re: APPS. (, With the black multimeter test lead, probe the wire identified with the. CMP And CKP Sensor Circuit Diagram (1999-2006 V8 Silverado, Sierra, Suburban, Tahoe, Yukon), P0343 -What Does It Mean? If your multimeter still does not register 10 to 12 Volts in this circuit, then you've found the cause of the APP Sensor 2 Diagnostic Trouble Code (DTC). This voltage signal starts high (around 4 Volts DC) when the pedal IS NOT being depressed and decreases (to around 2.9 Volts DC) as you depress the pedal.

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