DTC P0A50: Generator Position Sensor Circuit OVERSPEED

2009 Mercury Milan Premier, 3.0 1, AWDSECTION DTC P0A50: Generator Position Sensor Circuit OVERSPEED
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
P0A50 - GENERATOR POSITION SENSOR CIRCUIT OVERSPEED

Description:  Indicates the transaxle generator exceeded its calibrated maximum RPM limit.
Possible Causes: 
  • Damaged transaxle
  • Damaged transaxle control module (TCM)
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST TO .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.