DTC U012D: Lost Communication With Generator Control Module

2013 Ford Expedition EL King Ranch, RWDSECTION DTC U012D: Lost Communication With Generator Control Module
DTC U012D: LOST COMMUNICATION WITH GENERATOR CONTROL MODULE

Description: 
Possible Causes: 
Diagnostic Aids:  Refer to the appropriate Electronic Engine Controls article, PCM DTC Chart, to continue diagnosis.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the appropriate Description article, Possible Causes and Diagnostic Aids for the DTC.
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.