P27E1

Electric/Auxiliary Transmission Fluid Pump A Pressure Too Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Gear shifting problems
Hard or delayed shifts
Noise from transmission fluid pump
Reduced transmission efficiency

Causes

Electrical transmission fluid pump malfunction
Low transmission fluid level
Contaminated or old transmission fluid
Problems with the pump electrical circuit
Pressure sensor malfunction

How to Fix

Check the transmission fluid level and add if necessary
Check the condition of the transmission fluid and replace if necessary
Check the electrical circuit of the pump for breaks or short circuits
Check the operation of the transmission fluid pump
Check and, if necessary, replace the pressure sensor

Related codes

P27E0 P27E2 P27E3