Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor that tells the car's computer about the position of a part that locks the car in place when parked is not working correctly. It's like a light switch that's not turning on.
The P271A code indicates that the Park Pawl Position Sensor A is reporting a low voltage signal to the engine control module (ECM), suggesting a problem with the sensor or its circuit.
The Park Pawl Position Sensor is responsible for detecting the position of the park pawl, a component that locks the transmission when the vehicle is in park. A low circuit signal suggests a potential issue with the sensor itself, the wiring, or the ECM. This can affect the vehicle's ability to properly engage the parking gear.
• Check Engine Light is on
• Vehicle may not engage park properly
• Transmission warning light may be illuminated
• Faulty Park Pawl Position Sensor
• Damaged or corroded wiring/connectors
• Faulty ECM
Park Pawl: A component that locks the transmission in place when the vehicle is in park.
ECM: Engine Control Module, the computer that manages engine and transmission functions.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage or corrosion
• Test the Park Pawl Position Sensor for proper operation
• Replace the Park Pawl Position Sensor
• Repair or replace damaged wiring/connectors
• Reprogram or replace the ECM if necessary
• OBD-II Scanner
• Multimeter
• Basic hand tools
$150 to $400
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect wiring for damage
• Keep connectors clean and free from corrosion
• Perform routine maintenance on the transmission system
Sensor Issue
• Avoid driving the vehicle until the issue is resolved
• Consult a professional mechanic for accurate diagnosis
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with vehicles that have electronic transmission control systems, particularly those with advanced parking mechanisms.
Moderate – Should be addressed soon to prevent potential transmission issues.
Driving with this issue may lead to transmission failure or inability to properly park the vehicle, posing a safety risk.
• Vehicle in park
• Engine running
The Park Pawl Position Sensor is typically located on or near the transmission housing.
Q: Can I drive with a P271A code?
A: It's not recommended to drive with this code, as it may lead to transmission issues.
Q: How is the Park Pawl Position Sensor tested?
A: A multimeter is used to check the sensor's voltage output and continuity.
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