P0120 2001 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 2001 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 2001 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 2001 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 2001 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 2001 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 2001 Toyota Echo Code
1. What are the common symptoms of OBDII code P0120 in a 2001 Toyota Echo?
- Common symptoms include issues with acceleration, poor engine performance, stalling, and the vehicle going into "limp mode."
2. What does the OBDII code P0120 for a 2001 Toyota Echo indicate?
- The code P0120 indicates a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction.
3. What are the possible causes of the OBDII code P0120 in a 2001 Toyota Echo?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors, or issues with the throttle pedal position sensor switch.
4. How can I diagnose the cause of OBDII code P0120 in my 2001 Toyota Echo?
- Diagnostic steps may include checking the throttle position sensor's voltage, inspecting wiring for damage, and testing the throttle pedal position sensor switch.
5. Can I still drive my 2001 Toyota Echo with OBDII code P0120?
- It is not recommended to drive your vehicle with code P0120 as it can lead to unsafe driving conditions and potential damage to the engine.
6. How can I repair OBDII code P0120 in my 2001 Toyota Echo?
- Repair options may include replacing the throttle position sensor, repairing damaged wiring, or recalibrating the throttle pedal position sensor switch.
7. Will resetting the OBDII code P0120 in my 2001 Toyota Echo solve the issue?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the malfunction.
8. How much does it typically cost to repair OBDII code P0120 in a 2001 Toyota Echo?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
9. Can a DIY enthusiast fix OBDII code P0120 in a 2001 Toyota Echo?
- Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue themselves, but it's recommended to seek professional help for accurate diagnosis and repair.
10. How often does OBDII code P0120 occur in 2001 Toyota Echo vehicles?
- OBDII code P0120 can occur in 2001 Toyota Echo vehicles due to age-related sensor failures, wear and tear on components, or electrical issues.
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