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 a part in the car's transmission, called a solenoid, isn't working properly all the time. It's like a light switch that sometimes doesn't turn on when you flip it.
The P0774 code indicates that the transmission control module (TCM) has detected an intermittent issue with the operation of shift solenoid E.
Shift solenoids are responsible for controlling the flow of transmission fluid in an automatic transmission. They help engage the correct gear based on the vehicle's speed and load. An 'intermittent' issue means that the solenoid is not consistently performing its function, which can cause erratic shifting or transmission performance.
• Erratic shifting
• Transmission slipping
• Check Engine Light illuminated
• Faulty shift solenoid E
• Wiring issues such as damaged or corroded connectors
• Transmission fluid contamination
Solenoid: An electromechanical device that controls the flow of fluid in the transmission.
Transmission Fluid: The liquid used to lubricate and cool the components of the transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect transmission fluid for contamination.
• Check wiring and connectors for damage or corrosion.
• Replace shift solenoid E if faulty.
• Repair or replace damaged wiring/connectors.
• Change transmission fluid if contaminated.
• OBD-II scanner
• Multimeter
• Transmission fluid pump
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regular transmission fluid changes
• Routine inspection of transmission components
• Ensure proper electrical connections
Transmission Issue
• Avoid driving at high speeds until the issue is fixed.
• Get the transmission checked by a professional mechanic.
Check with the vehicle manufacturer for transmission warranty coverage.
P0774 has been a common code in vehicles with older automatic transmission systems, often due to solenoid wear or electrical issues.
Moderate – It should be addressed soon to prevent further transmission damage.
Driving with transmission issues can be unsafe and may lead to further vehicle damage.
• Vehicle at operating temperature
• Transmission in gear
Shift solenoids are located inside the transmission, often accessible by removing the transmission pan.
Q: Can I drive with a P0774 code?
A: It's not recommended to drive for long periods with this code, 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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