What does the p0120 code on the TP sensor mean?
Your vehicle’s throttle position (TP) sensors and accelerator pedal position (APP) sensors are crucial to engine operation. Just like any other engine sensor, these sensors may fail due to several reasons. P0120 is an error code that indicates a potential fault with one of your vehicle’s TP/APP sensors or the sensor’s circuit.
What happens when the throttle position sensor 1 goes bad?
When the Throttle Position Sensor 1 goes BAD, you’re gonna’ see the following symptoms: Check engine light will be lit on your instrument cluster. Diagnostic trouble code: P0120:Throttle Position (TP) Sensor 1 Malfunction. Lack of power when accelerating the engine.
How is the idle position of the throttle valve determined?
In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut.
How to test throttle position ( TP ) signal circuit?
TEST 4: Testing The TP Signal Circuit. TEST 5: Throttle Position (TP) Sensor 1 Resistance Test. You can find this tutorial in Spanish here: Cómo Probar El Código P0120 (Sensor TPS 1) Del Cuerpo Del Acelerador Electrónico (at: autotecnico-online.com ).
What does p0120 mean on the TPS sensor?
P0120 Meaning. The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM).
What causes a p0120 code on a throttle return?
Potential causes of the P0120 code include: Sticking throttle return spring MAP or TPS connector corrosion Misrouted harness causing chafing Bad TPS Bad PCM
What does the OBD code p0120 stand for?
All our repairs are backed by our 12-month / 12,000-mile warranty. P0120 is the generic OBD-II code which indicates that the Engine Control Module (ECM) has seen the TPS sensor circuit A output voltage going below or above the sensor’s expected range, or is chattering when compared to TPS sensor circuit B.
What causes a throttle position sensor to malfunction?
Malfunction is detected when an excessively low or high voltage from the sensor is sent to Engine Control Module (ECM). The throttle position sensor ( TPS) responds to the accelerator pedal movement.