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 the speed of the transmission, which helps the car know how fast it's going.
The car's control module is not getting proper readings from the transmission speed sensor, affecting performance.
The P27B6 code indicates that the internal control module has detected a performance issue with the transmission speed sensor. This sensor is responsible for providing the control module with data about the transmission's speed, which is crucial for proper gear shifting and overall vehicle performance.
• Check Engine Light is on
• Erratic or harsh shifting
• Reduced fuel efficiency
• Faulty transmission speed sensor
• Wiring issues or poor electrical connections
• Malfunctioning control module
Control Module: The computer in the car that manages engine and transmission functions.
Transmission Speed Sensor: A sensor that monitors the speed of the transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect the transmission speed sensor and its wiring.
• Test the sensor's output with a multimeter.
• Replace the faulty transmission speed sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Promptly address any transmission issues
• Keep electrical connections clean and secure
Sensor Issue
• Avoid driving at high speeds until fixed.
• Consult a professional mechanic for repairs.
Check with the manufacturer for specific warranty coverage on transmission components.
This code has been associated with transmission sensor issues in various models over the years, often due to sensor wear or electrical faults.
Moderate – While not immediately critical, it should be addressed soon to avoid further transmission issues.
Ignoring this code may lead to increased wear on the transmission and potentially unsafe driving conditions.
• Vehicle at operating temperature
• Test drive under normal conditions
The transmission speed sensor is typically located on the transmission housing.
Q: Can I drive with a P27B6 code?
A: It's possible to drive, but it's not recommended as it can lead to further transmission damage.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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