P0320: Ignition/Distributor Engine Speed Input Circuit Malfunction

HighPowertrainIgnition System

What does P0320 mean?

P0320 is a diagnostic trouble code indicating "Ignition/Distributor Engine Speed Input Circuit Malfunction". A component in the ignition system has been flagged as malfunctioning by the vehicle's ECU. This requires diagnosis to determine whether the part itself has failed or if there is a related wiring or control issue.

Common causes

  • Faulty ignition system component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.

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Code P0320 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P0319Rough Road Sensor B Signal Circuit
P0321Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0318Rough Road Sensor A Signal Circuit
P0322Ignition/Distributor Engine Speed Input Circuit No Signal