OBD Guide

U3012

Control Module Improper Wake-up Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Problems starting the engine
  • Random failures in electronic systems
  • Check Engine Light Is On
  • Lost connection with diagnostic equipment

Causes

  • Low battery charge
  • Poor contact in module connectors
  • Malfunction of the control module itself
  • Wiring Harness Problems
  • Software errors in the module

How to Fix

  1. Check battery charge
  2. Inspect the module connectors and wiring harness
  3. Carry out diagnostics of the module with a scanner
  4. Reflash the module if necessary
  5. Replace the module if a fault is detected

Related codes

Error U3012 by Vehicle Brand