P2127 OBD Error Code: Problem & Solutions

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Wondering on how to diagnose the error code P2127? Well, Parts Avatar has a solution! Here’s how you can crack the error code. This OBD-II code P2127 is often referred as a throttle/pedal position sensor/switch "E" circuit low. The function of regulating the opening of the throttle valve is performed by the electronic throttle control system (ETCS). Whenever the driver pushes the accelerator pedal, the accelerator pedal position sensor (APP) present, transmits a signal to the engine's control module (PCM) updating the PCM how much power the driver is requesting from the engine. The PCM then orders the throttle plate to open. When the PCM registers that the electronic throttle control is not operating per the specifications, it sets the code P2127. The PCM also at times, puts the engine into "limp home mode" thereby restricting power available from the engine to avoid unwanted acceleration.

This code P2127 indicates a low input in the throttle or pedal position sensor switch E. A sensor known as the pedal position sensor can be located in the gas pedal. The sensor informs the ECU about the gas pedal (when and how far it is depressed). The code P2127 is triggered whenever a low input has been detected from the pedal. The check engine light on the dashboard illuminates too. A failsafe mode is also set to prevent damage along with an illuminated check engine light. The failsafe mode tends to remain until the code or the sensor operations have been repaired completely.

What causes this problem with the Throttle Position Sensor E Circuit Low Input ?

• A failure in the throttle or pedal position sensor
• Loose or corroded wiring harness
• A bad or intermittent electrical connection
• A defect in the ECU
• A malfunctioning accelerator pedal position (APP) assembly
• A damaged throttle control motor

1. Accelerator pedal position assembly - Check engine light illuminated? Don’t worry, now get your error code P2127 fixed with Parts Avatar. A defective accelerator pedal position assembly can be bad as it controls the opening and closing or the throttle valve. So in order to maintain a proper functioning of the system change or repair it now.
2. Throttle control motor - A malfunctioning throttle control motor is damaging to such an extent that it not only triggers problems with the overall performance of the engine but also leads to a low fuel economy. In order to save your hard earned money, we advise you to immediately repair or replace your faulty throttle control motor.
3. Throttle position sensor - In cases where the TP sensor is defective it will fail to provide the right input, consequently leading to the onboard computer’ failure to direct the engine to work properly. Mend or restore it now.
4. Powertrain control module - Abbreviated PCM; this is an integral control unit. It controls the functioning of the entire system both directly and indirectly. So a defective one should be changed immediately to avoid problems throughout the system.
5. Throttle position sensor connector - Engine stall, rough idle and a no start condition are some of the problems that the driver may experience after the throttle position sensor connector fails to function. In order to fight the problems caused by the error code P2127. We advise you to repair or replace it now.
6. Pedal position sensor - Facing the error code P2127? Low acceleration? Sluggish engine crank? Rough idle? All this is likely to be experienced due to a malfunction in the pedal position sensor. Now you can get all that fixed with a new pedal position sensor available at Parts Avatar online at the best prices.

Do you want to know the symptoms to OBD code P2127? If yes, then you have arrived at the right place. We at Parts Avatar have listed out few common symptoms associated with throttle position sensor E circuit low input.

Common Symptoms

• A harsh or low idle
• Engine stalling
• Engine surge
• Zero or a little acceleration

Have a look at some ways with which you can correct the P2127 code:

• Mend or restore the wiring harness for the throttle position sensor or pedal position sensor if damaged
• Repair or replace a defective throttle/pedal position sensor E
• Amendments should be made to fix the intermittent electrical connection
• Replace the distorted engine control module if required

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of accelerator pedal position assembly, throttle control motor, throttle position sensor, powertrain control module, throttle position sensor connector, pedal position sensor and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this P2127 fault code:

• Firstly, the technicians should connect a scan tool to the vehicle’s DLC port for checking any codes that are stored in the ECU. One may also encounter numerous codes including history or pending codes. You should record all the codes along with their associated freeze frame data. These help in telling the circumstances of the car such as the RPM, vehicle speed, coolant temperature and more. Also, this information proves to be highly important when a duplication is being attempted of the symptoms.
• All the codes should then be cleared and the vehicle should be test driven (perform under circumstances as close as to the freeze frame conditions). Also, the test drive should only be conducted if the vehicle is safe for operations.
• A thorough visual inspection should be performed for any signs of a defective gas pedal, weary or corroded wiring and damaged components.
• Next, to view the live data and the throttle and gas pedal position sensor e-values, a scan tool should be used. It should be noted that these values should change when the pedal is depressed or released.
• Check the voltage at the pedal position sensor
• The last step should be to perform the manufacture’ ECU testing. Also, this varies according to the make/model of the vehicle

Common mistakes when diagnosing the P2127 code

Here listed are a few common mistakes that should be avoided while diagnosing the error code P2127:

One of the most common mistakes committed while performing the procedure is when the codes are not treated in the order in which they have been stored or at times are skipped entirely. Also, we advise you to not miss on minor repairs while concentrating wholly on major repairs (like a visual inspection is necessary