Control Module Improper Wake-Up Perfomance


Table of contents

U3012 GMC Possible Causes

  • Faulty Control Module setting the code
  • Control Module harness is open or shorted
  • Control Module circuit poor electrical connection

How do I fix code U3012 GMC?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Cost of diagnosing the U3012 GMC code

  The cost of diagnosing the U3012 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U3012 GMC Description

  The internal fault detection is handled inside the device. The symptom byte information is for engineering reference only. No external circuit diagnosis is involved. The Diagnostic Trouble Code (DTC) will set when the device has detected an internal malfunction.

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