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P0120 1999 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

- Code Popularity: 10,853 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0120 1999 Toyota Camry?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Throttle Position Sensor
  • Throttle Position Sensor circuit is open or shorted
  • Throttle Position Sensor poor electrical connection
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How to Fix the DTC P0120 1999 Toyota Camry?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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).

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0120 1999 Toyota Camry code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

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

What are Code Possible Symptoms?

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

Code P0120 1999 Toyota Camry 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 1999 Toyota Camry - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction - AutoCodes.com
P0120 1999 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Need More Information on the Code?

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Code P0120 1999 Toyota Camry comments

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