Powertrain, generic · Hybrid propulsion

P0D07 Battery Charging System Positive Contactor A Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0D07 is the general circuit code for positive contactor A of the charging system, the switch that joins the plus side of a charging path to the traction battery. Depending on the design this path comes from the DC fast-charge inlet or from the on-board charger; the Chevrolet Volt, for instance, places charging contactors between charger and pack. The code stands for an electrical fault in that contactor branch which fits no more specific case. No manufacturer documents P0D07 publicly; a GM patent describes judging such contactors by their coil current, and CARB requires plug-in vehicles to monitor charging components. Welded or non-closing contacts are P0D08/P0D09, driver faults P0D0A–P0D0D, the main pack contactors P0AA0 ff. Usually charging is blocked while driving still works.

Likely causes

Contactor coil open or shorted
Damaged wiring or corroded connector in the contactor branch
Fault in the module that drives and monitors the contactor

Symptoms

  • Charging not possible or aborted
  • Charging system warning in the instrument cluster

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–1,800
Time1–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

bcs pos contactor awiring harnessbms

Related codes

P0D08P0D09P0D0AP0D0EP0AA0

References: law.cornell.edu, patents.google.com, gsi.ext.gm.com.