P1397: System Voltage Out Of Self Test Range

MediumPowertrainElectrical/Charging

What does P1397 mean?

P1397 is a diagnostic trouble code indicating "System Voltage Out Of Self Test Range". This code relates to your vehicle's electrical/charging and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty electrical/charging 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.

Get a diagnosis for YOUR car

Code P1397 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

Download on iOSGet on AndroidUse on Web

Related codes

P1461A/C pressure sensor circuit voltage low
P1462A/C pressure sensor circuit voltage high
P1246Alternator Load Input Failed
P1245Alternator Load Input Failed Low