P2D6C code meaning
Battery Charging System Positive Contactor D Control Circuit/Open
What P2D6C means
P2D6C covers the coil supply of positive charging contactor D rather than its main contacts. The module finds the line in a state that contradicts the command to its driver, mostly due to an interrupted wire or coil. No manufacturer documents P2D6C publicly. GM's 2016 check of plus contactor A (P0D0A) looks at both driver states: with the driver off, more than 4 V on the line means open; with it on, a coil current below 57 mA does too; the code needs 40 of 50 samples failing, Type B on the 2016 Volt and Type A on the ELR. CARB requires output circuits to be checked for lost continuity. Contactor D then stays out and the charging mode it serves is unavailable. P2D6D–P2D6F are the other drive faults, P2D73 the minus side.
P2D6C 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 P2D6C
- Affected charging mode not possible
- Fault present permanently, not only while charging
- Charging warning displayed
Common causes of P2D6C
- Most likelyInterrupted coil supply wire or backed-out terminal
- PossibleOpen coil in plus contactor D
- Less likelyOutput stage of the module defective
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 P2D6C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6C | The exact fault in that area. |
What to do next
- Note P2D6C 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 P2D6C
What does P2D6C mean?
P2D6C means "Battery Charging System Positive Contactor D Control Circuit/Open". P2D6C covers the coil supply of positive charging contactor D rather than its main contacts. It is a generic code, so it means the same on every make.
Is it safe to drive with P2D6C?
P2D6C does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2D6C fail an emissions test?
P2D6C 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 P2D6C to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2D6C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.