P0120 2000 Toyota Echo Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction
Quick Answer
The throttle position sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0120 2000 Toyota Echo indicates Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction.
- Common causes
- Common causes include Faulty Throttle Position Sensor, Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0120 2000 Toyota Echo Description
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.
What are the Possible Causes of the DTC P0120 2000 Toyota Echo?
- Faulty Throttle Position Sensor
- Throttle Position Sensor circuit is open or shorted
- Throttle Position Sensor poor electrical connection
How to Fix the DTC P0120 2000 Toyota Echo?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0120 2000 Toyota Echo code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0120 2000 Toyota Echo Code
What is OBDII code P0120 in a 2000 Toyota Echo?
OBDII code P0120 in a 2000 Toyota Echo indicates a malfunction in the Throttle Pedal Position Sensor/Switch 'A' Circuit, suggesting an issue with the signal the sensor sends to the engine control module.
What are common symptoms of code P0120 in a 2000 Toyota Echo?
Common symptoms include engine stalling, poor acceleration, engine misfiring, hesitation while accelerating, and the Check Engine Light turning on.
What causes code P0120 to appear in a 2000 Toyota Echo?
Code P0120 can be triggered by several issues, including a faulty throttle position sensor, poor electrical connections at the throttle position sensor, a damaged throttle body, or issues with the engine control module.
How can I diagnose the cause of code P0120 in my 2000 Toyota Echo?
To diagnose code P0120, start by inspecting the throttle position sensor and its wiring for any visible damage. Use a multimeter to check for proper voltage and continuity. If the sensor and wiring are intact, further diagnosis of the throttle body and engine control module might be necessary.
What are the repair steps for fixing code P0120 in a 2000 Toyota Echo?
Repair steps typically involve cleaning or replacing the throttle position sensor, repairing any faulty wiring or connectors, and checking the throttle body for issues. If these steps do not resolve the problem, further evaluation of the engine control module may be required.
Is it safe to drive my 2000 Toyota Echo with code P0120?
While it might be possible to drive a short distance, driving with code P0120 can lead to engine performance issues like stalling or erratic behavior, which can be unsafe. It is advisable to address the issue as soon as possible.
What tools are needed to resolve code P0120 in a 2000 Toyota Echo?
Basic tools needed include a digital multimeter for electrical testing, a set of screwdrivers and wrenches for accessing the throttle position sensor, and possibly a scan tool for deeper engine analysis and to clear the code post-repair.
Can a faulty throttle position sensor affect fuel economy in a 2000 Toyota Echo?
Yes, a malfunctioning throttle position sensor can lead to poor fuel metering by the engine, causing either excessive fuel consumption or inadequate fuel supply, both of which can negatively impact fuel economy.
Discuss the causes and fixes for P0120 2000 Toyota Echo OBDII Code
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