P0C35Hybrid/EV Battery Temperature Sensor F 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
- Sensor F is an NTC thermistor with a pull-up on the sensing board, so its voltage drops as temperature rises; a short to ground looks like an extremely hot cell group. Low refers to the signal, not to the temperature. GM's 2016 table sets P0C35 when the converted value exceeds 160 °C in 8 of 10 samples; the Volt battery tables of 2016 to 2019 use above 87.5 °C for 1.4 s within 2 s; the eAssist mild hybrid flags a sense voltage under 0.3 V, about 90 °C, in 7 of 10 samples. All are Type B, two trips. Volt bulletin 18-NA-342 calls it sensor 6 circuit low voltage. The opposite fault is P0C36; a pack that is really too hot is reported as P0A7E. Because the controller must assume heat, it cuts power and may run the cooling hard.
- What you may notice
- MIL after two trips
- Battery cooling running at high speed
- Strongly reduced charge and drive power
- Likely causes
- LikelySensor F signal wire chafed and shorted to ground
- PossibleInternally shorted thermistor F
- RareFaulty input on the battery sensing board
- 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.