BMW DTC P1C45 – Hybrid/EV Battery Pack Coolant Outlet Temperature Sensor Circuit Performance High
DTC P1C45 meaning on BMW
DTC P1C45 on a BMW indicates an issue with the Hybrid/EV Battery Pack Coolant Outlet Temperature Sensor Circuit Performance being too high. This means that the sensor responsible for monitoring the temperature of the coolant outlet in the hybrid or electric vehicle battery pack is reporting a performance level that is considered too high by the vehicle’s computer system.
BMW DTC P1C45 symptoms
Symptoms of BMW DTC P1C45 may include:
- Check Engine Light illuminated on the dashboard
- Reduced fuel efficiency
- Engine overheating
- Hybrid/EV system not functioning optimally
BMW DTC P1C45 causes
Possible causes of BMW DTC P1C45 include:
- Faulty Hybrid/EV Battery Pack Coolant Outlet Temperature Sensor
- Wiring or connection issues in the sensor circuit
- Software or programming issues
BMW DTC P1C45 seriousness
The seriousness of BMW DTC P1C45 lies in the potential impact on the vehicle’s performance and efficiency. Ignoring this fault code can lead to further damage to the hybrid or electric vehicle system and may result in unsafe driving conditions.
How to diagnose DTC P1C45 on BMW
To diagnose BMW DTC P1C45, follow these steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the Hybrid/EV Battery Pack Coolant Outlet Temperature Sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage output to ensure it is functioning correctly
- Check for any software updates or reprogramming needed for the system
How to fix DTC P1C45 on BMW
To fix BMW DTC P1C45, consider the following:
- Replace the faulty Hybrid/EV Battery Pack Coolant Outlet Temperature Sensor
- Repair any damaged wiring or connections in the sensor circuit
- Perform any necessary software updates or reprogramming
- Clear the fault code and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1C45 on BMW
To erase BMW DTC P1C45, use a diagnostic scanner to clear the fault code from the vehicle’s computer system. After fixing the underlying issue causing the fault code, clearing it will reset the Check Engine Light and ensure the system recognizes the problem has been addressed.
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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