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2011 LINCOLN MKX
3.7L V6•AWD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor957Torque6412Fluid16DTC2254Battery2Maintenance0Recalls3
P0606critical severityPowertrain

PCM Processor Fault

on 2011 Lincoln MKX 3.7L V6 · AWD

What this code means

The PCM has detected an internal processor error.

Symptoms

  • Check Engine Light
  • Erratic operation
  • Possible no-start
  • Multiple fault codes

Common causes

  • PCM internal failure
  • Power supply issue to PCM
  • Severe voltage spike
  • PCM overheating

Diagnostic steps

  1. Check PCM power and ground circuits
  2. Look for water or heat damage
  3. Check for voltage spikes
  4. Try PCM reprogramming

Repair notes

Usually requires PCM replacement. Check power and grounds first.

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