P277C

Electric/Auxiliary Transmission Fluid Pump B Motor Stalled

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
Reduced transmission efficiency
Noises from the transmission area
In some cases - the transmission goes into emergency mode

Causes

Pump motor malfunction
Problems with wiring or connectors
Control module malfunction
Mechanical blocking of the pump
Low transmission fluid level

How to Fix

Check transmission fluid level
Inspect the pump wiring and connectors
Check the operation of the pump motor
Diagnose the control module
If necessary, replace the pump or its components

Related codes

P277B P277D P277E