Powertrain Definition only Lights the check engine lamp

P2E30: Battery Charger B Module Supply Voltage Low

Standardized SAE J2012 code · P2Exx codes

What does P2E30 mean?

The supply voltage to battery charger B control module is low. Charger may not start or operate reliably.

The code tells you which monitor failed, not which part is broken. Test before replacing parts.

Symptoms

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

Common causes

  • High Module supply fuse blown
  • Medium Wiring fault

Likelihood is a general estimate across vehicles; your make and model may differ.

Add your car to see reports of P2E30 on the same make and model first.

P2E30 in the community

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