P27A3

Electric/Auxiliary Transmission Fluid Pump B Performance/Stuck Off

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Gear shifting problems
Check engine light comes on
Reduced transmission performance
Unusual noises from the transmission

Causes

Electrical transmission fluid pump B malfunction
Problems with wiring or connectors
Faulty relay or fuse
Low transmission fluid level
Mechanical damage to the pump

How to Fix

Check transmission fluid level
Inspect the electrical wiring and connectors of the pump
Check relays and fuses
Test the pump operation
Replace the pump if necessary

Related codes

P27A0 P27A1 P27A2