Powertrain Definition only Lights the check engine lamp

P2D75: Battery Charging System Negative Contactor D Control Circuit Low

Standardized SAE J2012 code · P2Dxx codes

What does P2D75 mean?

The negative contactor D of the battery charging system reports a control circuit low condition. HV charging path cannot be commanded reliably.

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

Common causes

  • High Control wire shorted to ground
  • Medium Internal short in contactor coil
  • Low Connector pins corroded - high contact resistance

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

Add your car to see reports of P2D75 on the same make and model first.

P2D75 in the community

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