P2D5DBattery Charging System Positive Contactor C Stuck Open
- Generic OBD-II code · Powertrain
- How the car detects it
- P2D5D means positive charging contactor C stays open although it was commanded closed, so the plus pole of that charging path never connects and the session fails right at the start. No manufacturer documents P2D5D publicly; Mazda, which lists the non-closing case for contactor B (P2BC6), says nothing about a C contactor. GM's comparable check for the Volt's plus contactor A (P0D09) illustrates detection: while the charger precharges, its terminal voltage ought to climb; if 8 of 9 readings, spaced 12.5 ms apart, remain under 10 V, the contactor counts as stuck open (Type A). CARB requires plug-in hybrids to detect charger faults that prevent charging. Suspects are burnt contacts, a weak coil feed and a jammed armature. Welding is P2D5C, the minus side P2D64.
- What you may notice
- Charging in the affected mode does not start
- Charging station reports an aborted session
- Driving not affected
- Likely causes
- LikelyContactor C does not pull in (burnt contacts, jammed armature)
- PossibleInsufficient coil supply due to wiring or connector resistance
- RareControl software misjudges the precharge voltage
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.