Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer thinks there's a problem with the part that helps control which gear the car is in. It's like the car is confused about which gear it should be using.
The Transmission Range Control B Circuit is responsible for sending signals to the car's computer to indicate the current gear position. A 'high' signal means the voltage is higher than expected.
The P27EA code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the Transmission Range Control B Circuit. This circuit is used to monitor the position of the transmission gear selector. A high voltage condition can be caused by a short to voltage, an open circuit, or a faulty sensor.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start
• Faulty transmission range sensor
• Wiring issues such as short circuits or open circuits
• Faulty Powertrain Control Module (PCM)
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the transmission range sensor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the transmission range sensor if faulty.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain transmission wiring.
• Avoid driving through deep water which can damage electrical components.
• Schedule regular transmission service.
Sensor Issue
• Avoid driving the vehicle if it does not shift properly.
• Consult a professional mechanic for an accurate diagnosis.
Check with the vehicle manufacturer for specific warranty coverage related to transmission components.
This code has been associated with transmission issues in various vehicle models, often due to sensor or wiring problems.
Moderate – This issue can lead to drivability problems but is not immediately dangerous.
Driving with a malfunctioning transmission can lead to safety issues. It is advisable to address this problem promptly.
• Vehicle in park or neutral
• Engine running
The transmission range sensor is typically located on the transmission housing.
Q: Can I drive with a P27EA code?
A: It's not recommended, as it can cause shifting problems and may lead to further damage.
Q: How can I reset the P27EA code?
A: You can use an OBD-II scanner to clear the code, but it's important to fix the underlying issue first.
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