P0D2B code meaning
Control Pilot Indicator Control Circuit/Open
Powertrain system Generic code P0Dxx codes Check engine light
What P0D2B means
P0D2B concerns the driver circuit of the control pilot indicator, a lamp or LED with which the vehicle signals the state of the pilot connection to the charging station. The code covers the lamp's own wiring, not the pilot signal itself. GM monitors it on the Chevrolet Volt and Cadillac ELR in two cases: a short to ground is detected while the LED is commanded on (12 bad readings out of 15), a short to battery or an open circuit while it is off and the cord is plugged in (40 out of 50), each sampled every 100 ms. The 2011 and 2012 Volt treat it as Type B with MIL after two trips; the 2016 ELR tables list One Trip Type A. Wiring damage, a failed LED or a bad connector are the likely causes. Charging itself usually continues. Faults of the pilot line are P0CF3 and P0CF4.
P0D2B at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0D2B
- Indicator stays dark or lit regardless of charging state
- MIL, depending on model after one or two trips
Common causes of P0D2B
- Most likelyDamaged wiring or loose connector to the indicator
- PossibleFailed indicator LED
- Less likelyFaulty LED driver in the controlling module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Control pilot indicatorWiring harnessHybrid control module
What each part of P0D2B means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 2B | The exact fault in that area. |
What to do next
- Note P0D2B 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 P0D2B
What does P0D2B mean?
P0D2B means "Control Pilot Indicator Control Circuit/Open". P0D2B concerns the driver circuit of the control pilot indicator, a lamp or LED with which the vehicle signals the state of the pilot connection to the charging station. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D2B?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0D2B fail an emissions test?
P0D2B 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 P0D2B to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. This is a job for a workshop.
Will P0D2B clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.