AutoCodes - Toyota - P0121 2006 TOYOTA HIGHLANDER

P0121 2006 TOYOTA HIGHLANDER Code - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance

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

|P0121 2006 TOYOTA HIGHLANDER code possible causes

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How do I fix the P0121 2006 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.

|Cost of diagnosing the P0121 2006 TOYOTA HIGHLANDER code

Labor: 1.0

The cost of diagnosing the P0121 2006 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 P0121 2006 TOYOTA HIGHLANDER code detected?

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

|What are P0121 2006 TOYOTA HIGHLANDER code possible symptoms?

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

|P0121 2006 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 P0121 2006 Toyota Highlander - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance - AutoCodes.com

|Need more information with the P0121 2006 TOYOTA HIGHLANDER code?

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|P0121 2006 TOYOTA HIGHLANDER code comments

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Repair Importance Level: 3
 
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Repair Difficulty Level: 2
 
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