P2D5F code meaning
Battery Charging System Positive Contactor C Control Circuit Range/Performance
What P2D5F means
P2D5F reports that the coil circuit of plus-side charging contactor C is intact yet behaves in a way that does not match the command: the coil current, the voltage on the line or the pull-in delay drift out of their expected band without amounting to a clear open, low or high condition. No manufacturer documents P2D5F publicly, and the published GM tables contain no range test for the coil of any charge contactor. Under CARB, hybrid parts the maker chooses to monitor must show a proper response to commands. A GM patent lists usable measures: rise rate, derivative and integral of the coil current after a short pulse, compared with a reference recorded in advance. Raised resistance in a plug, a coil whose resistance has shifted and a worn driver fit this code. Opens are P2D5E, low and high P2D60/P2D61. Charging may cut out now and then.
P2D5F 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 P2D5F
- Charging interrupts sporadically
- Contactor clicks late or audibly chatters
- Code returns after clearing
Common causes of P2D5F
- Most likelyCorroded or loose pins raising resistance in the coil circuit
- PossibleCoil resistance of contactor C out of tolerance
- Less likelyAgeing output stage in the module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Bcs pos contactor cWiring harnessBms
What each part of P2D5F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 5F | The exact fault in that area. |
What to do next
- Note P2D5F 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 P2D5F
What does P2D5F mean?
P2D5F means "Battery Charging System Positive Contactor C Control Circuit Range/Performance". P2D5F reports that the coil circuit of plus-side charging contactor C is intact yet behaves in a way that does not match the command: the coil current, the voltage on the line or the pull-in delay drift out of their expected band without amounting to a clear open, low or high condition. It is a generic code, so it means the same on every make.
Is it safe to drive with P2D5F?
P2D5F does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P2D5F fail an emissions test?
P2D5F 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 P2D5F to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2D5F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.