P0C27

Electric/Auxiliary Transmission Fluid Pump A Motor Current Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–444 (est.)

Symptoms

Check engine light comes on
Deterioration of gear shifting
The transmission goes into emergency mode
Unusual noises from the transmission area
Reduced performance of the hybrid system

Causes

Auxiliary pump motor malfunction
Problems with pump wiring or connectors
Faulty pump circuit relay or fuse
Transmission control module (TCM) problems
Low transmission fluid level

How to Fix

Check the level and condition of the transmission fluid
Diagnose the pump electrical circuit
Check the functionality of the pump motor
Check the condition of connectors and wiring
If necessary, replace the transmission fluid auxiliary pump.

Related codes

P0C28 P0C29 P0C2A