P0120 Saturn Code - Throttle Position Sensor 1 Circuit
Quick Answer
The P0120 code for Saturn vehicles indicates an issue with the Throttle Position Sensor (TPS) 1 Circuit. Common causes include Faulty Throttle Position Sensor, Damaged wiring or connectors in the TPS circuit, Issues with the ECM. 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 Saturn indicates Throttle Position Sensor 1 Circuit .
- Common causes
- Common causes include Faulty Throttle Position Sensor, Damaged wiring or connectors in the TPS circuit, Issues with the ECM.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0120 Saturn Description
The P0120 code for Saturn vehicles indicates an issue with the Throttle Position Sensor (TPS) 1 Circuit. The TPS is a crucial component that monitors the position of the throttle valve, informing the engine control module (ECM) about the throttle angle. This information is used to adjust fuel delivery and ignition timing, optimizing engine performance and fuel efficiency.
Common Causes of P0120 Saturn
- Faulty Throttle Position Sensor
- Damaged wiring or connectors in the TPS circuit
- Issues with the ECM
- Corrosion or contamination in the sensor
Symptoms of P0120 Saturn
- Engine hesitation or surging
- Reduced fuel efficiency
- Check Engine Light illuminated
- Rough idling or stalling
- Difficulty accelerating
How to Fix P0120 Saturn
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the code and pinpoint the problem area.
- Inspect the wiring and connectors connected to the TPS for any damage or corrosion. Repair or replace as needed.
- Test the Throttle Position Sensor using a multimeter to check for proper voltage and resistance values. Replace the sensor if it fails the test.
- Clear the diagnostic trouble codes from the ECM using the scanner and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be necessary to identify any underlying issues with the ECM or other related components.
Cost to Fix P0120 Saturn
The typical repair costs for addressing a P0120 code related to the Throttle Position Sensor 1 Circuit can range from $100 to $300, depending on the specific cause of the issue and the cost of parts. This estimate includes the cost of a new Throttle Position Sensor, wiring repairs, and labor charges. It's essential to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your vehicle make and model.
When is the Code Detected?
Need more information about the P0120 Saturn code?
Need more information on how to fix the P0120 Saturn code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0120 Saturn code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0120 Saturn Code
No Frequently Asked Questions about P0120 Saturn Code found.
Discuss the causes and fixes for P0120 Saturn OBDII Code
Code P0120 Saturn comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.