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P0D25

Battery Charger System Precharge Time Too Short

The battery charger system precharge time is shorter than the calibrated minimum. Indicates short on DC-link or low precharge resistance.

  • Check engine light: Yes
  • Emissions related: No
  • Repair difficulty: hard

Symptoms

  • Charge status indicator shows fault
  • Charging may not start or interrupts
  • Slower-than-expected charge rate

Common causes

Ordered by how often each turns out to be the cause.

  • Short on DC-linkCommon
  • Precharge resistor shortedPossible

Parts involved

  • Battery Charger Precharge Circuit

P0D25 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.