P2D61Battery Charging System Positive Contactor C Control Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P2D61 points to excess voltage on the wire feeding the coil of plus-side contactor C, caused by touching a 12 V feed or by an output stage that no longer switches off. The real danger is a coil energised without command, closing the plus pole of the charging path while the module assumes it is open; charging is therefore normally inhibited. No manufacturer documents P2D61 publicly. GM's contactor A test (P0D0A) detects this as a short to battery when the switched-off output is less than 0.4 V below supply (2016 tables; the 2011 Volt minus contactor test uses 1.2 V). Audi documents the comparable high fault for contactor B (P2BCA) on Q8 e-tron models of model year 2024, but not for C. Chafed or swapped wires after repair work and a faulty driver are the usual causes. P2D60 is the low case, P2D68 the minus side.
- What you may notice
- Charging blocked as a precaution
- Contactor may click without a charging request
- High-voltage or charging warning
- Likely causes
- LikelyCoil feed wire shorted to a 12 V supply
- PossibleOutput stage does not switch off
- RareWires swapped at a connector after repair work
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.