BMW DTC P1C4B – Universal Charger Extension Control Module Crash Clamp Voltage Sensor Circuit Low
DTC P1C4B meaning on BMW
DTC P1C4B is a fault code that indicates an issue with the Universal Charger Extension Control Module Crash Clamp Voltage Sensor Circuit being detected as low in a BMW vehicle.
BMW DTC P1C4B symptoms
Symptoms of DTC P1C4B in a BMW may include:
- Check Engine Light illuminated
- Charging system malfunctions
- Reduced power or performance
BMW DTC P1C4B causes
Common causes of DTC P1C4B in a BMW can include:
- Faulty Universal Charger Extension Control Module
- Issues with the Crash Clamp Voltage Sensor Circuit
- Wiring or connection problems
BMW DTC P1C4B seriousness
The seriousness of DTC P1C4B on a BMW depends on the underlying cause. Ignoring this fault code can lead to potential charging system failures and affect the overall performance of the vehicle.
How to diagnose DTC P1C4B on BMW
To diagnose DTC P1C4B on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the Universal Charger Extension Control Module and related components
- Check the wiring and connections for any damage or loose connections
How to fix DTC P1C4B on BMW
To fix DTC P1C4B on a BMW, the following steps may be taken:
- Replace the faulty Universal Charger Extension Control Module
- Repair or replace any damaged wiring or connections
- Clear the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC P1C4B on BMW
To erase DTC P1C4B on a BMW, the fault code can be cleared using a diagnostic scanner. After the repair has been completed, the code can be reset, and the Check Engine Light should turn off if the issue has been successfully resolved.
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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