What Does P0C36 Mean?
DTC P0C36 indicates hybrid battery temperature sensor F circuit voltage is above the maximum expected threshold. For a typical NTC thermistor, a high voltage reading corresponds to very low resistance, which may indicate a short-to-ground, a short-to-voltage on the signal line, or an internally shorted thermistor. The BMS interprets this as an implausibly high temperature.
Safety Warning
A high reading may cause the BMS to believe that section of the battery is dangerously overheated, triggering aggressive power reduction or system shutdown. Conversely, if the sensor is actually shorted and the real temperature is unknown, a genuine thermal event could go undetected. Diagnose and repair immediately.
Common Causes
30%
Shorted thermistor sensor F (internal short circuit)
25%
Short-to-ground in the sensor wiring allowing current bypass
20%
Short-to-voltage on the signal wire from adjacent harness contact
15%
Moisture intrusion in the connector causing a conductive path
10%
BMS input circuit fault reading artificially high voltage
Diagnostic Steps
1
Confirm sensor F reads an abnormally high voltage or implausible high temperature on the scan tool.
2
Disconnect sensor F and measure thermistor resistance — a near-zero reading indicates an internal short.
3
With sensor disconnected, check if the high voltage persists on the harness side, indicating a wiring short.
4
Inspect the connector and wiring for moisture, corrosion, or insulation damage that could create a low-resistance path.
5
If the sensor and wiring are both good, the BMS input may need testing or the module may require replacement.
Estimated Repair Cost
$200 - $1,200
Parts + labor, varies by vehicle and location
DTC P0C36 indicates hybrid battery temperature sensor F circuit voltage is above the maximum expected threshold. For a typical NTC thermistor, a high voltage reading corresponds to very low resistance, which may indicate a short-to-ground, a short-to-voltage on the signal line, or an internally shor...
The most common cause of P0C36 (Hybrid Battery Temperature Sensor "F" Circuit High) is: Shorted thermistor sensor F (internal short circuit)
Typical repair costs for P0C36 range from $200 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A high reading may cause the BMS to believe that section of the battery is dangerously overheated, triggering aggressive power reduction or system shutdown. Conversely, if the sensor is actually shorted and the real temperature is unknown, a genuine thermal event could go undetected. Diagnose and repair immediately.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0C36 to identify the root cause.
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Quick Info
Category
Powertrain
System
Hybrid Battery Thermal Management
Difficulty
Type
Generic (SAE)
Recommended Tools
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