BMW DTC P1C55 – Universal Charger Extension Control Module System Voltage Sensor/Crash Clamp Voltage Sensor Correlation
DTC P1C55 meaning on BMW
DTC P1C55 on a BMW refers to the Universal Charger Extension Control Module System Voltage Sensor/Crash Clamp Voltage Sensor Correlation. This diagnostic trouble code indicates a discrepancy between the voltage readings from the system voltage sensor and the crash clamp voltage sensor in the universal charger extension control module.
BMW DTC P1C55 symptoms
Symptoms of DTC P1C55 on a BMW may include issues with the charging system, such as slow or incomplete charging of the battery, erratic voltage readings, or even a complete failure of the charging system. The vehicle may also experience electrical malfunctions or warning lights related to the charging system.
BMW DTC P1C55 causes
The causes of DTC P1C55 on a BMW can vary, but common reasons include a faulty system voltage sensor, a malfunctioning crash clamp voltage sensor, wiring issues, or a problem within the universal charger extension control module itself. Corrosion or poor connections can also contribute to this fault code.
BMW DTC P1C55 seriousness
DTC P1C55 should be addressed promptly as it directly affects the charging system of the vehicle. Ignoring this fault code can lead to battery issues, potential electrical system failures, and ultimately, the vehicle may not start or run properly. It is recommended to address this issue as soon as possible to prevent further damage.
How to diagnose DTC P1C55 on BMW
To diagnose DTC P1C55 on a BMW, a diagnostic scan tool capable of reading BMW-specific fault codes is required. The technician will need to inspect the system voltage sensor, crash clamp voltage sensor, wiring connections, and the universal charger extension control module for any visible damage or signs of malfunction. Testing the voltage output of these sensors and checking for proper communication between components is essential.
How to fix DTC P1C55 on BMW
Fixing DTC P1C55 on a BMW may involve replacing the faulty system voltage sensor, crash clamp voltage sensor, or repairing any damaged wiring connections. In some cases, recalibrating or reprogramming the universal charger extension control module may be necessary. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix for this fault code.
How to erase DTC P1C55 on BMW
To erase DTC P1C55 on a BMW, a diagnostic scan tool capable of clearing fault codes is needed. Once the underlying issue causing the fault code has been addressed and fixed, the technician can use the scan tool to clear the code from the vehicle’s memory. After clearing the code, it is advisable to perform a test drive to ensure the fault does not reoccur.
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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