Powertrain
Definition only
Lights the check engine lamp
P2BC8: Battery Charging System Positive Contactor B Control Circuit Range/Performance
Standardized SAE J2012 code · P2Bxx codes
What does P2BC8 mean?
The positive contactor B of the battery charging system reports a control circuit range/performance condition. HV charging path cannot be commanded reliably.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Coil resistance drifted
- Medium High-resistance contact in connector
- Low Sensor element aged beyond calibration window
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2BC8 on the same make and model first.
P2BC8 in the community
Ask about P2BC8No one has posted about P2BC8 yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your P2BC8 problem