BMW DTC P1C5B – Universal Charger Extension Control Module Cooling System Temperature Sensor Circuit High
DTC P1C5B meaning on BMW
DTC P1C5B is a diagnostic trouble code that indicates an issue with the Universal Charger Extension Control Module Cooling System Temperature Sensor Circuit being too high in a BMW vehicle.
BMW DTC P1C5B symptoms
Symptoms of DTC P1C5B in a BMW may include abnormal temperature readings on the cooling system gauge, overheating of the engine, reduced engine performance, and potential illumination of the check engine light on the dashboard.
BMW DTC P1C5B causes
The high temperature sensor circuit in the Universal Charger Extension Control Module may be triggered by a faulty temperature sensor, wiring issues, or a malfunction in the control module itself.
BMW DTC P1C5B seriousness
Ignoring DTC P1C5B in a BMW can lead to potential engine damage due to overheating, reduced fuel efficiency, and overall poor vehicle performance. It is important to address this issue promptly.
How to diagnose DTC P1C5B on BMW
To diagnose DTC P1C5B on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then inspect the cooling system temperature sensor, wiring connections, and the control module for any visible signs of damage or corrosion.
How to fix DTC P1C5B on BMW
Fixing DTC P1C5B on a BMW may involve replacing the faulty cooling system temperature sensor, repairing any damaged wiring, or replacing the Universal Charger Extension Control Module if necessary. It is recommended to follow the manufacturer’s repair procedures and use genuine BMW parts for the best results.
How to erase DTC P1C5B on BMW
Once the underlying issue causing DTC P1C5B has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the check engine light and allow the vehicle’s computer system to monitor the sensor circuit for any new faults.
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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