P1771 Code - Throttle Position Sensor Open Circuit
Quick Answer
The P1771 diagnostic trouble code indicates that there is an open circuit in the throttle position sensor (TPS) of the vehicle. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Corrosion or moisture in the TPS circuit. 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
- P1771 indicates Throttle Position Sensor Open Circuit.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Corrosion or moisture in the TPS circuit.
- 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.
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Code P1771 Description
The P1771 diagnostic trouble code indicates that there is an open circuit in the throttle position sensor (TPS) of the vehicle. The TPS is a sensor that monitors the position of the throttle valve and sends this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal performance. An open circuit in the TPS can disrupt this communication and lead to issues with engine performance, fuel efficiency, and overall drivability. If left unaddressed, the vehicle may experience stalling, hesitation, rough idling, poor acceleration, and even potential damage to the engine over time.
Common Causes of P1771
- Faulty throttle position sensor
- Damaged wiring or connectors in the TPS circuit
- Corrosion or moisture in the TPS circuit
- Issues with the ECM or other related components
- Wear and tear over time
Symptoms of P1771
- Engine stalling or rough idling
- Hesitation or lack of responsiveness when accelerating
- Poor fuel efficiency
- Illumination of the check engine light
- Difficulty starting the engine
How to Fix P1771
- Diagnose the issue by using a scan tool to confirm the P1771 code and check the TPS sensor for proper operation.
- Inspect the wiring and connectors in the TPS circuit for any signs of damage, corrosion, or loose connections.
- Replace the throttle position sensor if it is found to be faulty, ensuring proper installation and calibration.
- Clear the trouble code from the ECM and test drive the vehicle to verify that the issue has been resolved.
- Perform a final inspection to ensure that the TPS is functioning correctly and that all connections are secure.
Cost to Fix P1771
The cost of repairing a throttle position sensor open circuit issue can vary depending on the make and model of the vehicle, the location of the repair shop, and the specific components that need to be replaced. On average, the cost of parts for a new TPS sensor can range from $50 to $200, while labor costs typically add another $100 to $200. Therefore, the total repair cost may fall between $150 and $400. It's important to note that prices can fluctuate, so it's advisable to obtain quotes from different repair shops to ensure a competitive rate.
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Code P1771 Information for Specific Makes
- P1771 Ford — Throttle Position Sensor Open Circuit
- P1771 Hyundai — Shifting Position
- P1771 Mazda — Throttle Position Sensor Open Circuit
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