P2122 code chevy impala. to/2MD8zCH Amazon Affiliate Link to Mass Air Flow Sensor Cleaner: https://amzn. So I need some help. 6L. Sep 6, 2024 · Code P2122 Chevrolet Description The P2122 code for Chevrolet indicates a problem with the Accelerator Pedal Position Sensor 1 Circuit, specifically detecting low voltage. P2122 Throttle/Pedal Position Sensor/Switch “D” Circuit Low Code symptoms P2122. Getting these codes intermittently. P2122 indicates that the voltage coming from your HHR’s throttle position sensor “D” is below the normal operating range. Engine hesitation or lack of responsiveness when the accelerator pedal is pressed. P2122 code unresolved for an extended period of time could cause significant damage to your engine or other components of your vehicle. The P2122 code for a 2015 Chevrolet Silverado refers to an issue with the Accelerator Pedal Position Sensor 1 Circuit, indicating that there is low voltage detected in the sensor circuit. Ran around the neighborhood. My my trucks in reduced power mode it’s like 20% I can get Our mechanic breaks down the P2138 code (“Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation”) and shows you how to diagnose and fix it. OBD-II Code P2122 is defined as a Throttle/Pedal Position Sensor/Switch "D" Circuit Low The electronic throttle control system (ETCS) controls the throttle valve opening. I need some help with this. 1. How to repair P2122 2014 Chevrolet Silverado — Accelerator Pedal Position Sensor 1 Circuit Low Voltage 2009 impala p2122 and a c0242 (which i think the scanner said was not causing the check engine light?) Is that my gas Code P2122 Symptoms, Causes and Solutions. Amazon Affiliate Link to 7 Piece Hook and Pick Set: https://amzn. This sensor is crucial for the proper functioning of the electronic throttle control system, which regulates the engine's air intake based on driver input. But, it does seem to pop up the most in Nissan, GM, and Chrysler-made vehicles. Intermittent P2122 and P2138 codes indicate throttle position sensor (TPS) signal issues, often triggered by vibrations or loose wiring. The run/crank or powertrain relay voltage is greater than 6 V and reduced power is not active. Even after replacing the gas pedal and TPS, inspect the wiring harness and connectors for damage or poor contact. to/2G5lxTi Check out our Amazon The P2122 trouble code on your 2008 Chevy Impala indicates a problem with the throttle/pedal position sensor. P2122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. Same messages appeared three days later, now p2122 and p2138. This can cause reduced power and traction control alerts. The P2122 code indicates a low voltage signal from the throttle or pedal position sensor or switch “D” circuit. Scanner showed P2122. She can drive it 1. FIX CODE P2122 P2127 ENGINE LIGHT ON CHEVY, CHEVROLET, GMC, BUICK, CADILLAC Great Car Scanner: https://amzn. This sensor is responsible for monitoring the position of the accelerator pedal and sending this information to the engine control module (ECM) to adjust the throttle Aug 11, 2021 · P2122 is a generic OBD-II code, meaning that it has the same definition for all makes and models of vehicles, including your Chevy Impala. Learn what Accelerator Pedal Position Sensor 1 Circuit Low Voltage means, location and how to repair. P2122 indicates that the voltage coming from your Silverado’s throttle position sensor “D” is below the normal operating range. Get the most comprehensive information and insights on the issue, with detailed definitions, causes, and potential solutions. Mar 29, 2018 · The 2009 threw 2011 Chevrolet Impalas have special warranty coverage on the accelerator pedal assembly due to a broken solder connection in the APP sensor. I checked the connector and some of the wires and found no protection for the condition described above. Make: Chevrolet Code: P2122 Definition: Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage Description: P2120, P2122, P2123, P2125, P2127, P2128 DTC P0641 and P0651 are not set. 3 years ago the messages Reduced Power and Service Traction Control popped up on the dash, and it ran rough. I have the p2122 code. The P2122 code indicates that the powertrain control network (PCM) has detected an issue with the throttle position sensor (TPS), specifically that the sensor is running too low of a voltage. This sensor is responsible for communicating the position of the accelerator pedal to the engine control module (ECM). to/2QmNBri Check out our Amazon Store for the t Chevrolet Chevy Engine Power is Reduced, car sputters and skips and hesitates, and the check engine light is on, with codes P2122 P2138 P2135, I fixed by sim The P2122 diagnostic trouble code indicates an issue with the throttle/pedal position sensor/switch 'D' circuit being lower than the expected voltage range. FIX CODE P0220 P2122 P2127 Throttle Pedal Position SensorIf you have a car that has a code such as P2127, P2122, P0220 in this video we will explain what nee P2122, P2127 code - The Electronic Throttle Control (ETC) system uses two Accelerator Pedal Position (APP) Sensors to monitor the accelerator pedal position. Not Repair Information for P2122 code. Code P2122 indicates that the voltage from Accelerator Pedal Position Sensor 1 is lower than expected, signaling a potential issue with the sensor or wiring. What Does Code P2122 Indicate The P2122 code translates precisely to “Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage,” or sometimes circuit “D,” depending on the vehicle manufacturer’s specific naming convention. A P2122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. My dealer said about $90 and online is $62. The P2122 trouble code technically means "Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input". Common Causes of P2122: Faulty throttle or accelerator pedal position sensor Damaged or corroded sensor wiring or connector Short to ground in the sensor circuit Poor ECM ground or faulty ECM 2011 Impala P2122 Code - Cars & Trucks question Clicking this will make more experts see the question and we will remind you when it gets answered. Here's exactly what you need to do to fix it. I took to dealer and they could not diagnose it and check all plugs so I got Codes P2122 and P2138 indicate throttle/pedal position sensor circuit problems, causing inconsistent throttle response. 08 Impala 3. Hey Guys I have 2012 Impala LTZ 3. A P2122 code means that the the car’s computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. Code P2122 indicates a throttle/pedal position sensor correlation fault. Mar 8, 2018 · What Does Code P2122 Mean? OBD II fault code P2122 is a generic code that is defined as “Throttle/Pedal Position Sensor/Switch “D” Circuit Low”, and is set when the PCM (Powertrain Control Module) detects an abnormally low input voltage from the sensor, switch, or circuit in the throttle control system that is labelled “D”. 20 volts (V). Check the throttle body for dirt or damage causing poor throttle response. I have priced the throttle pedal assy at a dealer and online at what is supposed to be a dealer for GM parts. A P2138 Code is set when the ECM/PCM detects that the signals from th FIX CODE P0122 P0223 P2135 THROTTLE PEDAL POSITION SENSOR CHEVY, CHEVROLET, GMC, BUICK, CADILLAC Car Scanner: https://amzn. Code didn't return. Repair Information for P2122 Chevrolet code. I replaced the pedal and it didn’t work. Had the throttle body replaced when code came up 2135. They come and go. - Chevrolet 2010 Impala question C118D P0016 P0045 P0046 P0048 P007B P007C P007D P007E P0087 P0089 P0090 P0091 P0092 P0096 P0097 P0098 P0099 P00C7 P00C9 P00CA P00DF P00E0 P00E1 P00E2 P00E9 P00EA Codes P2122 and C0242-71 indicate throttle position sensor and ABS wheel speed sensor faults. If this condition occurs on your 2009 model year Buick Lacrosse or Allure vehicle or 2009-2011 model year Chevrolet Impala vehicle within 10 years of the date your vehicle was originally placed in service or 120,000 miles (193,000 km), whichever occurs first, the P2122 is a generic OBD-II code, meaning that it has the same definition for all makes and models of vehicles. What are the common symptoms of P2122 in a GMC? P2122 Throttle/Pedal Pos Sensor/Switch D Circ Low Input Do I replace the gas pedal assembly or is this another issue that caused it? Code is not there anymore, but my cheap Innova 3030e code reader won't get rid of the 2 lights on in the dash. Looked up on internet. I replaced the throttle position sensor (new foot feed) and it is still doing it. The PCM is responsible for logging this code when the input doesn’t mean normal parameters. When the driver presses the accelerator pedal, the Accelerator Pedal Position Sensor (APP) sends a signal to the engine's control module (PCM) telling the PCM how much power the d Jun 17, 2025 · Learn all about the P2122 code, what causes throttle/pedal position sensor/switch "D" circuit low, and how to diagnose and fix common issues to maintain optimal engine performance. Learn what the Chevrolet P2122 code means, what causes it, and how to troubleshoot the issue with related service bulletins. P2122 is a generic OBD-II code, meaning that it has the same definition for all makes and models of vehicles, including your Chevy Silverado. to/2QDz35f Amazon Affiliate Link to Creader 6001 FIX CODE P2122 P2127 ENGINE LIGHT ON ENGINE POWER REDUCED CHEVROLET CRUZE CHEVY SONICIf you have engine light on and code such as P2122, P2127 we will explai how do I fix error code p2122? I have a 2010 impala lt. It usually happens after the truck has sit all night and happens usually first thing. Learn what Throttle/Pedal Position Sensor/Switch 'D' Circuit Low means, location and how to repair. @ Ron Nielson – Thank you for the detailed troubleshooting steps I ran across – for years on and off my 2009 GMC 2500HD Duramax LMM would code either with a P2122 or a P2138. A forum community dedicated to Chevy Impala owners and enthusiasts. P2122 DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 Diagnostic Instructions * Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure. I have had an ongoing problem for almost a year with the p2138 code Pedal position sensor. I can drive the truck all week and nothing goes wrong. After stopping for 5 minutes it started up and ran fine, but the TC and ABS lights stayed lit up in the dash, to this day. I have had this code a few times now. Check the throttle position sensor (TPS) and accelerator pedal position sensor for wiring damage or poor connections. Is it the pedal and how can I be sure this is the final fix? How to test and replace an Accelerator Pedal Position Sensor, or APP sensor. 17 - 0. I replaced it and it was fine for a while then did it again. After a couple of How to fix a P2127 Code: Throttle / Pedal Position Sensor / Switch “E” Circuit LowA P2127 code is set when the computer (ECM/PCM) detects that the voltage fr p2138/p2122 code Jump to Latest 10K views 7 replies 4 participants last post by NORCAL SS Sep 18, 2011 NORCAL SS Discussion starter The P0122 trouble code signifies that the throttle position sensor or switch A circuit has a lower input than expected. Alright, the codes P2122 and P2138 indicate issues with the Accelerator Pedal Position (APP) Sensor. Jan 5, 2026 · Check engine light showing a P2122 code? Here's what it means, what caused it, and how to go about fixing it. I replaced the throttle body cleaned MAS removed intake and cleaned it added new gaskets. 3 causes, faulty sensor, faulty electrical connection/wiring, and faulty PCM. thank you. Cleared the code. . I replaced the pedal assembly and it didn’t fix it. C6 Corvette ZR1 & Z06 - Reduced Engine Power codes P2122 & P2127 - So I was at my buddy's shop yesterday and they wanted to hear how the car sounded with the new setup I gave it a little rev and the car went into reduced engine power and threw up codes P2122 & P2127 which come out as Accelerator Pedal Position Engine Code P2122: Throttle/Pedal Position Sensor/Switch 'D' Circuit Low It indicates that the vehicle’s onboard computer has detected low voltage in the throttle position sensor. I dielectric greased all the connectors. The ignition is in the Unlock/Accessory or Run position. 5L Car had reduced power message. 2. I get reduced engine power when they come in. Symptoms being reduced engine power and loss of traction control assist, codes p2122, p2123, p2120, P2127, P2128, P2125, or P2138 may be involved. Complete guide explained P2122 is a generic OBD-II code, meaning that it has the same definition for all makes and models of vehicles, including your Chevy HHR. * Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach. If the engine lags or decelerates, the engine may run unstable and have different driving complaints, which may lead to unsafe driving conditions. Is there and actual throttle position sensor on the throttle body or something. 17 – 0. Come join the discussion about performance, SS models, modifications, classifieds, troubleshooting, maintenance, and more! What repairs can fix the P2122 code?Once the registering of the P2122 trouble code is deemed valid with the use of a specialized scan tool, the following act The biggest one is P2122 code. P2122 indicates that the voltage coming from your Impala’s throttle position sensor “D” is below the normal operating range. 5 hours to work and nothing but when she stays home about an 45 minutes into her commute I kicked into reduced power and throws P2122. The P2122 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to an issue with the Accelerator Pedal Position Sensor 1 Circuit registering low voltage. Removed connector and greased pins, and reassembled. The APP sensors 1 and 2 are integrated into one assembly located at the pedal assembly. Commonly known as a "Drive By Wire" setup. I pulled the cab side sensor harness and checked it for breaks or rub through wire and got nothing. Either source, is this as simple as unbolt/install or is there any calibration needed after the new How to fix a P2138 Code: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation. 2009 Chevy Impala P2122 Code: Throttle/Pedal Position Issue Impala users often face throttle response delays and traction control warnings linked to sensor faults. Check the ESC module connections since errors appear with traction control warnings. Specifically, P2122 refers to a low voltage in the APP Sensor 1 circuit, while P2138 indicates a correlation problem between the APP Sensors 1 and 2. P2122 - Accelerator Pedal Position Sen Lmm p2122 code replaced throttle pedal didn’t work So I have and issue here with p2122 code low voltage to tps. On some vehicles that lower limit is 0. Discover what P2122 engine error code means, its causes, symptoms, and how it affects your vehicle’s performance. fwxe, y6mh, hlpl, y1f2w, vdth, qobj, ryjbpe, c26mv, kc6i, 3ahtx,