OBD-II code · Powertrain (generic)

P0C27 Electric/Auxiliary Transmission Fluid Pump A Motor Current Low

The motor current of auxiliary transmission fluid pump A reports a motor current low fault.

Is it safe to drive with P0C27?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelyPump load lower than expected
  • PossibleMotor winding partially open

Symptoms

  • Check engine or transmission warning light on
  • Harsh, delayed, or missing shifts
  • Possible limp mode (locked in one gear)
  • Slipping or shuddering during gear changes

Repair at a glance

Difficulty
Hard
DIY friendly
Best left to a mechanic
Typical labour
2–8 h
Emissions test
Usually unaffected
Parts involved
Aux Trans Pump A Motor

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.