Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps control the flow of fluid in the transmission. It's like a switch that isn't working right, which can make the car not drive smoothly.
The P27E4 code indicates an issue with the electric or auxiliary transmission fluid pump control valve circuit. It suggests that the circuit is not operating within the expected range or performance parameters.
The electric or auxiliary transmission fluid pump control valve is responsible for regulating the flow of transmission fluid in the vehicle's transmission system. This code is triggered when the control module detects that the circuit's performance is outside the expected range, which could be due to electrical issues, mechanical failure, or sensor malfunction.
• Check Engine Light illuminated
• Transmission slipping
• Poor fuel economy
• Unusual noises from the transmission
• Faulty electric/auxiliary transmission fluid pump
• Damaged wiring or connectors in the circuit
• Faulty control valve
• Malfunctioning transmission control module
Transmission: A system in a vehicle that transmits power from the engine to the wheels.
Control Valve: A device that regulates the flow of fluid in a system.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the electric/auxiliary transmission fluid pump for proper operation.
• Check the control valve for mechanical issues.
• Repair or replace damaged wiring or connectors.
• Replace the faulty electric/auxiliary transmission fluid pump.
• Replace the malfunctioning control valve.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission fluid checks and changes
• Routine inspection of wiring and connectors
• Timely maintenance of transmission components
Sensor Issue
• Avoid driving the vehicle until the issue is fixed to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with issues in vehicles with advanced transmission systems that use electric pumps for fluid control.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Ignoring transmission issues can lead to vehicle breakdowns and safety hazards.
• Vehicle at operating temperature
• Transmission in drive mode
The electric/auxiliary transmission fluid pump is typically located near the transmission assembly.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to transmission failure and costly repairs.
Q: Can I drive with this code?
A: It's not recommended to drive with this code as it may cause further damage to the transmission.
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