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P0606: Control Module Processor

Severity: High Stop or minimize driving and get it looked at right away.

What does P0606 mean?

The engine computer has detected an internal fault.

Generic OBD-II definition: Control Module Processor. Confirm applicability in your vehicle service information.

Common causes

  • Internal ECM/PCM fault
  • Low voltage or bad ground
  • Software issue

Symptoms

  • Stalling
  • No start
  • Multiple warning lights

Can I keep driving with P0606?

Severity: High Stop or minimize driving and get it looked at right away.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

  • Check battery and grounds
  • Check for software updates
  • Repair or replace module

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