How do I fix error P0122?

What repairs can fix the P0122 code?

  1. Repairing or replacing the TPS connector.
  2. Repairing the wiring as necessary.
  3. Replacing the TPS with a new sensor.

What are the possible causes for DTC P0122?

What are the Possible Causes of the P0122 Code?

  • A loosely-mounted throttle position sensor.
  • Electrical short on the sensor circuit, either to the ground or to another wire.
  • Faulty sensor.
  • Faulty throttle position switch.
  • Bad or corroded wiring or connections for the sensor.
  • Issues with the PCM.

How do you reset the throttle body sensor on a Mercedes?

How to fix it

  1. Turn the key to ON position. Position II that is. Don’t start the car.
  2. Press and hold the gas pedal for at least five seconds. Keep the pedal pressed.
  3. Turn ignition off but do not remove the key. Now release the gas pedal.
  4. Remove key. Wait a minute before you restart your Mercedes.

What happens when you unplug throttle position sensor?

Can I Bypass My Throttle Position Sensor? When you disconnect the throttle position sensor, take 30 seconds to turn on your ignition and wait for the engine to start, your vehicle should start properly. TPSes can only work if the ECU realizes they’re not working and adjusts the engine’s functioning accordingly.

How do you reset the throttle position sensor?

The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.

Where is the throttle sensor position located?

A throttle position sensor (TPS) is a sensor used to monitor the air intake of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle. More advanced forms of the sensor are also used.

What is the code for a bad throttle body?

A faulty throttle body is one of the common causes of code P0121.

How do I fix code P0221?

What repairs can fix the P0221 code?

  1. Replacing the throttle position sensor.
  2. Plugging an electrical connector back in.
  3. Repairing wiring associated with the throttle position sensor.
  4. Replacing the Engine Control Module.

What is the code P2135?

When code P2135 is set, the ECM has found that the throttle position sensor and accelerator pedal position sensor aren’t producing the expected signals that they should be. When the ECM detects this, it may put the vehicle in a fail-safe condition that limits throttle opening to 5-15%.

How do I reset my Mercedes computer?

Does this below work..

  1. Turn the ignition key to the on (not start) position.
  2. Press the gas pedal to the floor and hold for five seconds.
  3. Turn the key to the “off” position (don’t remove the key), then release the gas pedal.
  4. Wait at least two minutes for ECU to reset.

How do you reset a Mercedes TCU?

Transmission Control Unit (TCU) Reset

  1. Insert the key and put it in position 2, this is the position where all the dashboard lights come on but the engine doesn’t start. …
  2. Press the gas pedal all the way down for 15 seconds to activate the kick-down switch. …
  3. Turn the key to position 0 and do not remove the key.