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Diagnose/P0616
P0616High SeverityElectrical

Internal Control Module Engine RPM Output Error

What This Means

The internal control module has detected an error with its RPM output function. This internal PCM issue may affect engine management.

Common Symptoms

  • Check engine light on
  • Erratic engine behavior
  • Reduced performance
  • Multiple system issues

Common Causes

  • PCM internal failure
  • Power supply issue
  • Software error
  • Voltage spike
  • Water damage

Estimated Repair Cost

$200 – $1500
Parts and labor (varies by vehicle and location)
Difficulty:Professional

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.