OBD Guide
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P2E30

Battery Charger B Module Supply Voltage Low

P2E30 is an OBD-II diagnostic trouble code meaning: Battery Charger B Module Supply Voltage Low. Common causes: charging module b fault, wiring harness damage. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Battery charging problems
  • Unstable operation of electrical equipment
  • Reduced engine power

Causes

  • Charging module B fault
  • Wiring harness damage
  • Blown fuse
  • Battery problems
  • Generator malfunction

How to Fix

  1. Check voltage at charging module B
  2. Inspect the wiring harness for damage
  3. Check fuses
  4. Test the battery and generator
  5. Replace charging module B if necessary

Related codes

P2E31P2E32

Error P2E30 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P2E30 code mean?

P2E30 is an OBD-II diagnostic trouble code that indicates: Battery Charger B Module Supply Voltage Low

What causes a P2E30 error code?

The most common causes of P2E30 include: Charging module B fault; Wiring harness damage; Blown fuse; Battery problems.

How do I fix a P2E30 diagnostic trouble code?

To fix P2E30: Check voltage at charging module B. Inspect the wiring harness for damage. Check fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2E30?

Yes, but get it checked soon

How much does it cost to fix P2E30?

The estimated repair cost for P2E30 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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