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 the car's computer is having trouble reading a sensor that tells it what gear the transmission is in. It's like when you can't tell if a light switch is on or off.
The P27ED code indicates a problem with the electrical circuit of the transmission range control sensor, which helps the car's computer know what gear the transmission is in.
The Transmission Range Control A Position Sensor/Switch is responsible for sending signals to the vehicle's Powertrain Control Module (PCM) indicating the current gear position. A 'Circuit Low' condition suggests that the voltage or signal from this sensor is below the expected range, which could be due to a short circuit, faulty sensor, or wiring issues.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start
• Faulty transmission range sensor
• Short circuit in the wiring
• Poor electrical connection
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to read the code.
• Inspect the wiring and connections to the transmission range sensor.
• Test the sensor for proper operation and voltage output.
• Replace the faulty transmission range sensor.
• Repair or replace damaged wiring.
• Ensure all connections are secure and clean.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain transmission components.
• Ensure wiring and connectors are free from corrosion.
• Address any transmission issues promptly.
Sensor Issue
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check if the vehicle's powertrain warranty covers transmission sensor issues.
This code is commonly associated with transmission sensor failures in vehicles with automatic transmissions.
Moderate – The vehicle may experience shifting issues, which can affect drivability.
Driving with a faulty transmission sensor can lead to unsafe driving conditions. Address the issue promptly.
• Vehicle in Park or Neutral
• Engine running
The transmission range sensor is typically located on the transmission housing, near the gear selector shaft.
Q: Can I drive with a P27ED code?
A: It's not recommended to drive with this code active, as it can lead to transmission shifting issues.
Q: How do I reset the P27ED code?
A: After repairs, the code can be cleared using an OBD-II scanner. If the issue is fixed, it should not return.
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