AutoCodes - Toyota - P0120 2005 TOYOTA HIGHLANDER

P0120 2005 TOYOTA HIGHLANDER Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3
Table of contents

|P0120 2005 TOYOTA HIGHLANDER code possible causes

  • Faulty Throttle Position Sensor
  • Throttle Position Sensor circuit is open or shorted
  • Throttle Position Sensor poor electrical connection

|How do I fix the P0120 2005 TOYOTA HIGHLANDER code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0120 2005 TOYOTA HIGHLANDER code tech notes

Very common problem with Toyota models. Before replacing any parts, try cleaning the throttle body and reset the light. If the codes come back, then it will necessary to replaced the throttle position sensor (TPS). Most auto parts sell the TPS for around $60.

|Cost of diagnosing the P0120 2005 TOYOTA HIGHLANDER code

Labor: 1.0

The cost of diagnosing the P0120 2005 TOYOTA HIGHLANDER code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0120 2005 TOYOTA HIGHLANDER code detected?

Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM.

|What are P0120 2005 TOYOTA HIGHLANDER code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|P0120 2005 TOYOTA HIGHLANDER code description

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). 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. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
OBDII Code P0120 2005 Toyota Highlander - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction - AutoCodes.com

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|P0120 2005 TOYOTA HIGHLANDER code comments

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Repair Importance Level: 3
 
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Repair Difficulty Level: 2
 
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