OBD-II code · Powertrain (generic, extended)
P2CC3 Generator Voltage Sense Circuit B Low
The voltage sense circuit B for the generator reports a circuit b low condition. Generator output regulation may be impaired.
Is it safe to drive with P2CC3?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySense wire shorted to ground
- PossibleOpen in sense wire
- Less likelyPack cell imbalance approaching service threshold
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Generator B, Wiring Harness, Ecm
Related codes
- P063CGenerator Voltage Sense Circuit A Low
- P2CC0PCV Heater "B" Performance
- P2CC1Generator Voltage Sense Circuit B
- P2CC2Generator Voltage Sense Circuit B Range/Performance
- P2CC4Generator Voltage Sense Circuit B High
- P2CC5Generator Inverter Power Supply B Circuit/Open
- P2CC6Generator Inverter Power Supply B Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.