OBD Guide
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P2D72

Battery Charging System Negative Contactor D Stuck Open

P2D72 is an OBD-II diagnostic trouble code meaning: Battery Charging System Negative Contactor D Stuck Open. Common causes: mechanical contactor jamming, open or short circuit in control circuit. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Charging system warning on dashboard
  • Battery low
  • Problems starting the engine
  • Reduced hybrid system efficiency (if applicable)

Causes

  • Mechanical contactor jamming
  • Open or short circuit in control circuit
  • Malfunction of the charging system control unit
  • Contact corrosion
  • Contactor power problems

How to Fix

  1. Check the condition of contactor D
  2. Check the integrity of the control circuit
  3. Measure contactor resistance
  4. Check control signals from the control unit
  5. Replace a faulty contactor or repair a circuit

Related codes

P2D70P2D71P2D73

Error P2D72 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P2D72 code mean?

P2D72 is an OBD-II diagnostic trouble code that indicates: Battery Charging System Negative Contactor D Stuck Open

What causes a P2D72 error code?

The most common causes of P2D72 include: Mechanical contactor jamming; Open or short circuit in control circuit; Malfunction of the charging system control unit; Contact corrosion.

How do I fix a P2D72 diagnostic trouble code?

To fix P2D72: Check the condition of contactor D. Check the integrity of the control circuit. Measure contactor resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2D72?

Limited driving only, diagnose soon

How much does it cost to fix P2D72?

The estimated repair cost for P2D72 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat