P0D0B reports that the control circuit of positive charging contactor A works electrically but does not behave plausibly – coil current or line voltage outside the window expected for the commanded state, or a response that comes too slowly. No manufacturer documents P0D0B publicly. The nearest documented test is GM's P0D0A on the Chevrolet Volt, which matches commanded and actual driver state and judges coil current, and CARB requires plug-in vehicles to check charging components for circuit and rationality faults. Typical triggers are contact resistance in connectors, a coil whose resistance has drifted, or a weakening driver stage. Opens are P0D0A, low and high signals P0D0C/P0D0D, mechanical sticking P0D08/P0D09. Charging may work only now and then or be refused.
High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
Symptoms
- Charging sessions fail sporadically
- Stored code, possibly with a charging system warning
Most likely causes
- Contact resistance or corrosion in the control circuit connectors
- Contactor coil with changed resistance
- Weakening driver stage in the control module
What to check, in order
Start with the simplest. You can tick off each step.
What each character of P0D0B means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- D: Subsystem depends on the code range
- 0B: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0D0B?
If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
What causes code P0D0B?
The most common causes are: contact resistance or corrosion in the control circuit connectors; contactor coil with changed resistance; weakening driver stage in the control module.
Related codes
- P0D0ABattery Charging System Positive Contactor A Control Circuit/Open
- P0D0CBattery Charging System Positive Contactor A Control Circuit Low
- P0D0DBattery Charging System Positive Contactor A Control Circuit High
- P0D09Battery Charging System Positive Contactor A Stuck Open
- P0D12Battery Charging System Negative Contactor A Control Circuit Range/Performance
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.