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 in your car that helps it know if it's in park is not working properly. It's like a switch that tells the car it's safe to stop, but the switch isn't working right.
The P271C code is triggered when the Powertrain Control Module (PCM) detects a low voltage signal from the Park Pawl Position Sensor B circuit.
The Park Pawl Position Sensor is responsible for monitoring the position of the park pawl, which is a component that locks the transmission in place when the vehicle is in park. A low circuit signal typically indicates a problem with the sensor itself, wiring issues, or a fault in the PCM.
• Check Engine Light is on
• Vehicle may not start
• Transmission may not shift into park
• Faulty Park Pawl Position Sensor B
• Wiring issues such as open or short circuits
• Faulty PCM or transmission control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the Park Pawl Position Sensor.
• Test the sensor for proper operation using a multimeter.
• Replace the Park Pawl Position Sensor B if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regular maintenance checks on the transmission system.
• Ensure all electrical connections are clean and secure.
• Avoid harsh driving conditions that stress the transmission.
Sensor Issue
• Do not ignore the Check Engine Light; have it checked as soon as possible.
• Avoid driving the vehicle if it's not shifting properly.
• Consult with a professional mechanic for accurate diagnosis.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code is relatively uncommon and typically associated with specific makes and models with known transmission sensor issues.
Moderate – While the vehicle may still be drivable, it can lead to further transmission issues if not addressed.
Driving with this code may not be safe as it can affect the vehicle's ability to stay in park securely.
• Vehicle should be in park.
• Ensure the battery is fully charged.
The Park Pawl Position Sensor is typically located on or near the transmission assembly.
Q: Can I drive with a P271C code?
A: It's not recommended to drive with this code as it can lead to further transmission issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can reset the Check Engine Light by using an OBD-II scanner or disconnecting the battery for a few minutes.
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