P0B05

Electric/Auxiliary Transmission Fluid Pump Motor Phase V Current High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Gear shifting problems
Unusual noises from the transmission area
Reduced transmission efficiency
Possible overheating of transmission fluid

Causes

Pump motor malfunction
Problems with wiring or connectors
Transmission control module (TCM) malfunction
Mechanical obstacles in pump operation
Short circuit in the motor circuit

How to Fix

Check the condition of the pump motor
Check the integrity of wiring and connectors
Diagnose the transmission control module
Test the motor power supply circuit
If necessary, replace the pump motor

Related codes

P0B04 P0B06 P0B07