P0372: Timing Reference High Resolution Signal A Too Few Pulses

MediumPowertrainValve Timing

What does P0372 mean?

P0372 is a diagnostic trouble code indicating "Timing Reference High Resolution Signal A Too Few Pulses". This code relates to your vehicle's valve timing and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

  • Check engine light (MIL) illuminated on dashboard
  • Intermittent warning lights
  • Erratic gauge readings

Common causes

  • Faulty valve timing 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?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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