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 talking to a part that helps the car change gears smoothly.
The P1739 code is triggered when the transmission control module (TCM) detects a communication error with the clutch solenoid, which is responsible for controlling the engagement of the clutch in automatic transmissions.
The P1739 code indicates a communication fault between the transmission control module (TCM) and the clutch solenoid. This may be due to wiring issues, a faulty solenoid, or a malfunctioning TCM. The clutch solenoid is crucial for managing the hydraulic pressure needed to engage and disengage the clutch, allowing for smooth gear shifts.
• Harsh or delayed gear shifts
• Transmission slipping
• Check Engine Light illuminated
• Faulty clutch solenoid
• Damaged wiring or connectors
• Malfunctioning transmission control module (TCM)
Transmission Control Module (TCM): An electronic component that controls the transmission functions.
Clutch Solenoid: A device that controls the flow of transmission fluid to engage or disengage the clutch.
• Perform a visual inspection of the clutch solenoid and related wiring.
• Use a multimeter to test the solenoid for proper resistance.
• Check for any TCM error codes or malfunctions.
• Repair or replace damaged wiring or connectors.
• Replace the faulty clutch solenoid.
• Reprogram or replace the transmission control module (TCM) if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Honda Accord
• Honda Civic
• Acura TL
• Regular maintenance of the transmission system.
• Ensure all electrical connections are secure and free of corrosion.
• Use quality transmission fluid and replace it as recommended.
Transmission Issue
• Avoid driving the vehicle aggressively until the issue is resolved.
• Consult with a professional mechanic for a thorough diagnosis.
Check if the vehicle's powertrain warranty covers transmission components.
The P1739 code has been reported in vehicles with high mileage or those that have experienced transmission issues in the past.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Driving with a malfunctioning transmission can lead to unsafe driving conditions. Address this issue promptly.
• Vehicle at operating temperature
• Transmission engaged in drive mode
The clutch solenoid is located within the transmission assembly, typically accessible by removing the transmission pan.
Q: Can I drive with a P1739 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to further transmission damage.
Q: How do I reset the P1739 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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