BMW DTC P0C85 – Hybrid/EV Battery Temperature Sensor ‘H’ Circuit Intermittent/Erratic
DTC P0C85 meaning on BMW
DTC P0C85 on a BMW indicates an issue with the Hybrid/EV Battery Temperature Sensor ‘H’ Circuit being intermittent or erratic. This sensor is responsible for monitoring the temperature of the hybrid or electric vehicle battery pack.
BMW DTC P0C85 symptoms
Symptoms of DTC P0C85 on a BMW may include:
- Check Engine Light illuminated
- Hybrid/EV system warning light on
- Reduced fuel efficiency
- Irregular battery performance
BMW DTC P0C85 causes
Common causes of DTC P0C85 on a BMW include:
- Faulty Hybrid/EV Battery Temperature Sensor ‘H’
- Wiring or connection issues in the sensor circuit
- Intermittent sensor signal
BMW DTC P0C85 seriousness
The seriousness of DTC P0C85 on a BMW lies in the potential impact on the hybrid or electric vehicle system. Ignoring this fault can lead to improper battery temperature regulation, affecting overall vehicle performance and efficiency.
How to diagnose DTC P0C85 on BMW
To diagnose DTC P0C85 on a BMW, a mechanic can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the Hybrid/EV Battery Temperature Sensor ‘H’ and its wiring for any visible damage
- Check the sensor’s resistance and voltage readings to ensure proper functionality
- Perform a battery temperature sensor test to verify accurate temperature readings
How to fix DTC P0C85 on BMW
To fix DTC P0C85 on a BMW, the following steps can be taken:
- Replace the faulty Hybrid/EV Battery Temperature Sensor ‘H’
- Repair any damaged wiring or connections in the sensor circuit
- Clear the fault code and reset the system
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P0C85 on BMW
To erase DTC P0C85 on a BMW, follow these steps:
- Use a diagnostic scanner to clear the fault code
- Disconnect the vehicle’s battery for a few minutes to reset the system
- Reconnect the battery and start the vehicle to ensure the fault code has been erased
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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