P0C94Hybrid/EV Battery Temperature Sensor K Circuit Low
- 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
- With P0C94 the controller sees the sensor K signal pulled below its lower limit, a pattern produced by a chafed wire touching ground or an internally shorted thermistor, which the conversion turns into an extreme temperature. GM's 2016 table 16OBDG02 counts a failure whenever the converted value is hotter than 160 °C and needs 8 such readings out of 10, one every 100 ms, Type B; in the 2012 Volt table the same sensor group passes only at or below 87.5 °C. The 2018 Outlander PHEV from Mitsubishi files a short of sensor [10] when the voltage stays below 0.12 V for 2 s. Unlike with the over-temperature code P0A7E, the pack itself is usually not hot. The battery controller nonetheless limits power and may keep the cooling busy; the open-circuit partner is P0C95.
- What you may notice
- Warning lamp and reduced electric power
- Battery cooling running although the pack is not hot
- Likely causes
- LikelySensor K signal line shorted to ground
- PossibleThermistor K shorted internally
- RareMoisture or coolant reaching the sensor K connection
- 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: €150 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.