P2D6FBattery Charging System Positive Contactor D Control Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P2D6F says the supply wire to the coil of plus contactor D sits above its commanded level. No manufacturer documents P2D6F publicly. GM's 2016 drive test for plus contactor A (P0D0A) treats an idle output within 0.4 V of the supply voltage as shorted to power. Where the coil is switched on its supply side, one of the two layouts a GM patent describes, such a short energises the coil with no command, so plus contactor D may close and put the plus pole of its path, up to the inlet, on battery potential. Modules therefore lock charging when they see this code. Causes are a wire chafed against a 12 V line, swapped wires or a driver that stays on. P2D6E is the low case, P2D76 the minus side.
- What you may notice
- Charging locked
- Contactor clicks unexpectedly with ignition on
- High-voltage warning possible
- Likely causes
- LikelyCoil feed shorted to a 12 V supply
- PossibleOutput stage stuck switched on
- RareWires swapped after a repair
- 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.