P0D09Battery Charging System Positive Contactor A Stuck Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P0D09 is set when positive charging contactor A fails to close: after the command the expected voltage never shows up on the charger side. GM documents the check for the Chevrolet Volt (VICM 2016, HPC2 2019): during charger precharge, with charging and precharge contactors on and the negative main contactor still off, a charger voltage under 10 V ends the test; 2016 needs 8 failing samples out of 9, 2019 waits for at least 0.7 s of precharge. Both are Type A, MIL after one trip. Kia lists P0D0972 for the 2023 Niro EV (bulletin 298, ICCU replacement), Stellantis P0D09 for Wagoneer S and Charger Daytona (BPCM update), GM preliminary PIT6083 for the 2024 Lyriq after very long charging. Charging then stops or never starts; the welded case is P0D08.
- What you may notice
- Charging does not start or ends shortly after plugging in
- Malfunction indicator lamp after one trip (GM Type A)
- Charging or high-voltage warning in the cluster
- Likely causes
- LikelyContactor mechanically failing to close or burnt contacts
- PossibleFault in the on-board charger or integrated charging unit (Kia ICCU bulletin)
- PossibleControl software needing an update (Stellantis, GM Lyriq)
- RareMissing coil supply because of a wiring or fuse fault
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €3,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.