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 not getting a signal from a sensor that helps it know how fast a part inside the transmission is spinning.
The P2747 code is triggered when the powertrain control module (PCM) does not receive a signal from the intermediate shaft speed sensor B, which is crucial for monitoring the transmission's internal speed.
The intermediate shaft speed sensor B is responsible for providing the PCM with data about the rotational speed of the intermediate shaft within the transmission. This data is used to ensure proper shifting and transmission operation. A 'no signal' condition indicates that the sensor is not sending any data, which could be due to a faulty sensor, wiring issues, or a problem with the PCM.
• Check Engine Light is on
• Transmission may not shift properly
• Decreased fuel efficiency
• Faulty intermediate shaft speed sensor B
• Damaged or corroded wiring/connectors
• Faulty PCM
PCM: Powertrain Control Module, the vehicle's main computer for engine and transmission management.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the intermediate shaft speed sensor B for proper operation.
• Replace the faulty intermediate shaft speed sensor B.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of transmission system
• Periodic inspection of sensors and wiring
• Keeping electrical connections clean and secure
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle if transmission issues are severe.
Check with your vehicle manufacturer for specific warranty coverage on transmission components.
This code has been reported in various models with automatic transmissions, often due to sensor degradation over time.
Moderate – While the vehicle may still be drivable, improper transmission function can lead to further damage if not addressed.
Ignoring this code can lead to transmission damage and unsafe driving conditions.
• Vehicle at operating temperature
• Transmission in gear
The intermediate shaft speed sensor B is typically located on the transmission housing.
Q: Can I drive with a P2747 code?
A: It is not recommended to drive with this code active as it can lead to transmission damage.
Q: How often should the speed sensor be replaced?
A: Speed sensors typically last the life of the vehicle, but should be inspected if issues arise.
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