P0C93 code meaning
Hybrid/EV Battery Temperature Sensor K Circuit Range/Performance
Powertrain system Generic code P0Cxx codes Check engine light
What P0C93 means
P0C93 compares sensor K with its neighbours: the reading is electrically fine but too far from the pack average. GM's 2016 hybrid table 16OBDG02 sets it when the absolute difference exceeds 25.00 °C for 50 samples out of 67 taken every 25 ms, roughly 1.7 s, rated Type B; the check is suspended whenever a low, high or erratic code for the battery sensors is active. GM's 2011 table lists K as sensor 11. Mitsubishi handles it on the 2018 Outlander PHEV as a rationality fault of sensor [10]: it needs 3,600 s of soak, a pack temperature from −30 to 60 °C and a 13 °C deviation lasting 0.32 s, tested once per drive. A thermistor that drifted or lost contact with its cells is the typical finding.
P0C93 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0C93
- Warning lamp, often first noticed after a cold start
- Charging and discharging power limited
Common causes of P0C93
- Most likelyThermistor K reading off while still electrically valid
- PossibleSensor K lifted off its cell group
- Less likelyReal temperature spread from uneven coolant flow or a weak cell
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery temp sensor kWiring harnessBms
What each part of P0C93 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| 93 | The exact fault in that area. |
What to do next
- Note P0C93 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0C93
What does P0C93 mean?
P0C93 means "Hybrid/EV Battery Temperature Sensor K Circuit Range/Performance". P0C93 compares sensor K with its neighbours: the reading is electrically fine but too far from the pack average. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C93?
Drive gently and only to a workshop. With P0C93 the car can go into limp mode (reduced power) to protect itself.
Will P0C93 fail an emissions test?
Yes, it can. P0C93 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0C93 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P0C93 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.