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 found a problem with the electric pump that helps move the transmission fluid. It's not getting enough power.
The P27E5 code indicates that the control circuit for the electric or auxiliary transmission fluid pump is experiencing low voltage, which can affect the performance of the transmission.
The electric or auxiliary transmission fluid pump is responsible for maintaining the flow of transmission fluid, especially in hybrid or electric vehicles. The control valve circuit is monitored by the vehicle's computer, and if it detects a low voltage condition, it triggers the P27E5 code. This can lead to insufficient fluid pressure and potential transmission issues.
• Transmission slipping
• Poor fuel economy
• Illuminated check engine light
• Faulty transmission fluid pump
• Damaged wiring or connectors in the pump circuit
• Blown fuse or relay related to the pump circuit
Transmission: A system in a vehicle that transfers power from the engine to the wheels.
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.
• Check the fuse and relay associated with the pump circuit.
• Replace or repair damaged wiring or connectors.
• Replace the faulty transmission fluid pump.
• Replace the blown fuse or faulty relay.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Ford Fusion Hybrid
• Chevrolet Volt
• Regularly check and maintain transmission fluid levels.
• Inspect wiring and connectors for wear and tear.
• Schedule regular vehicle maintenance.
Sensor Issue
• Avoid driving aggressively until the issue is fixed.
• Schedule a service appointment with a certified mechanic.
Check if the vehicle's powertrain warranty covers transmission components.
This code is more common in hybrid and electric vehicles due to their reliance on electric pumps for transmission fluid circulation.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Ignoring this code can lead to transmission failure, which may result in loss of vehicle control.
• Vehicle at operating temperature
• Transmission fluid at correct level
The electric transmission fluid pump is typically located near the transmission or integrated within it.
Q: Can I drive my car with a P27E5 code?
A: It's not recommended to drive for extended periods with this code as it may lead to transmission damage.
Q: How can I reset the P27E5 code?
A: You can reset the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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