P1120 Subaru Code - Throttle Position Sensor Out Of Range
Quick Answer
The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit 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
- P1120 Subaru indicates Throttle Position Sensor Out Of Range.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit 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 P1120 Subaru Description
What are the Possible Causes of the DTC P1120 Subaru?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
- Throttle position sensor not properly adjusted
How to Fix the DTC P1120 Subaru?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1120 Subaru 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 P1120 Subaru Code
1. What does the OBDII code P1120 mean on a Subaru?
P1120 indicates that the throttle position sensor (TPS) is reading values that are outside the expected range.
2. What are the common symptoms of code P1120 in a Subaru?
Symptoms include poor acceleration, rough idling, stalling, reduced fuel efficiency, and the check engine light turning on.
3. What causes the P1120 code to appear on a Subaru?
Common causes include a faulty throttle position sensor, damaged wiring or connectors, or a misaligned throttle body.
4. Can I drive my Subaru with a P1120 code?
Driving with a P1120 code is not recommended, as it can lead to performance issues and unsafe driving conditions.
5. How do I fix the P1120 code on a Subaru?
Repairs may involve replacing the throttle position sensor, repairing damaged wiring, or recalibrating the throttle body.
6. How much does it cost to fix a P1120 code on a Subaru?
The cost varies but typically ranges from $100 to $300, depending on whether the sensor needs replacement or minor wiring repairs are required.
7. How do I test the throttle position sensor for a P1120 code?
You can use a multimeter to check the sensor's voltage output while manually moving the throttle to ensure it stays within the expected range.
8. Can a dirty throttle body cause the P1120 code?
Yes, a dirty or clogged throttle body can lead to misreadings and trigger the code.
9. Will clearing the P1120 code fix the issue permanently?
Clearing the code will only reset the check engine light temporarily; the underlying issue must be addressed to prevent it from returning.
10. Is the P1120 code specific to Subaru vehicles?
While P1120 can appear on other vehicles, the specific meaning and troubleshooting steps may vary by manufacturer.
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