P2D6F code meaning
Battery Charging System Positive Contactor D Control Circuit High
What P2D6F means
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.
P2D6F at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2D6F
- Charging locked
- Contactor clicks unexpectedly with ignition on
- High-voltage warning possible
Common causes of P2D6F
- Most likelyCoil feed shorted to a 12 V supply
- PossibleOutput stage stuck switched on
- Less likelyWires swapped after a repair
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Bcs pos contactor dWiring harnessBms
What each part of P2D6F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6F | The exact fault in that area. |
What to do next
- Note P2D6F and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2D6F
What does P2D6F mean?
P2D6F means "Battery Charging System Positive Contactor D Control Circuit High". P2D6F says the supply wire to the coil of plus contactor D sits above its commanded level. It is a generic code, so it means the same on every make.
Is it safe to drive with P2D6F?
P2D6F does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2D6F fail an emissions test?
P2D6F is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2D6F to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2D6F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.