P0CB3Hybrid/EV Battery Temperature Sensor O Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0CB3 is a plausibility code: sensor O delivers an electrically valid reading, yet it strays too far from the rest of the pack. In GM's 2012 Volt table 12OBDG01A the check waits until propulsion, plug-in charging and battery thermal conditioning have all been off for more than 21,600 s; a gap above 25.3 °C to the average in 50 of 67 samples then counts as a Type B failure. The HPC2 tables 18OBDG02 and 19OBDG02 use 25.00 °C, sample every 25 ms and pause while sensor circuit faults or a communication loss with the battery electronics are present. Mitsubishi assigns P0CB3 to module sensor [14] of the Outlander PHEV and fails it at a deviation of 13 °C or more held for 0.32 s, after a soak above 3,600 s and with the pack between −30 and 60 °C.
- What you may notice
- Warning lamp typically appearing after the car has stood for hours
- Battery power limited
- Likely causes
- LikelyThermistor O drifting while its voltage stays in range
- PossibleSensor O no longer seated firmly against its module
- RareModule section really warmer or colder, e.g. weak cell or uneven cooling
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.