P1397 - System Voltage Out Of Self Test Range

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P1397 Possible Causes

  • Alternator belt loose or missing
  • Low battery voltage
  • Faulty Charging System

First diagnose P1397 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P1397 code

    Labor: 1.0

    The cost of diagnosing the P1397 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1397 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1397 Meaning

The P1397 code indicates that the 12-volt system voltage is too high or too low during the Key On Engine Off (KOEO) or key on engine running (KOER) self-test. It sets if the system voltage falls below or exceeds the calibrated threshold at any time during the KOEO or KOER self-test.
OBDII Code P1397 - System Voltage Out Of Self Test Range - Engine-Codes.com

P1397 More Information

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P1397 Information for specific makes

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