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 a pump in the car that helps move the special liquid used in the transmission. It's not making enough pressure, kind of like a weak water gun.
The P27E2 code indicates that the pressure generated by the auxiliary transmission fluid pump B is below the expected level.
The auxiliary transmission fluid pump B is responsible for maintaining adequate hydraulic pressure in the transmission system to ensure smooth gear shifting and proper transmission operation. When the pressure is too low, it can lead to transmission performance issues.
• Harsh or delayed gear shifts
• Transmission overheating
• Illuminated check engine light
• Faulty auxiliary transmission fluid pump B
• Low transmission fluid level
• Blocked transmission fluid lines
Transmission: A system in a vehicle that transmits power from the engine to the wheels.
Hydraulic Pressure: The force exerted by a fluid in a closed system, used to operate components like pumps and actuators.
• Check transmission fluid level and condition
• Inspect the auxiliary transmission fluid pump B for proper operation
• Examine transmission fluid lines for blockages or leaks
• Replace or repair the faulty pump
• Refill or replace transmission fluid
• Clear any blockages in the fluid lines
• OBD-II scanner
• Transmission fluid pressure gauge
• Basic hand tools
$200 - $800
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly check and maintain transmission fluid levels
• Schedule routine transmission inspections
• Ensure the transmission cooling system is functioning properly
Transmission Performance
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult 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 vehicles equipped with electric auxiliary transmission pumps, particularly in models with advanced transmission systems.
High – Addressing this issue promptly is crucial to avoid severe transmission damage.
Driving with a malfunctioning transmission can be dangerous and may lead to further vehicle damage.
• Vehicle at operating temperature
• Transmission in gear
The auxiliary transmission fluid pump is typically located near the transmission assembly.
Q: Can I drive with a P27E2 code?
A: It's not recommended to drive with this code active, as it can lead to serious transmission damage.
Q: How do I know if my transmission fluid is low?
A: You can check the transmission fluid level using the dipstick while the engine is warm and the vehicle is on a level surface.
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