P1C4C – BMW DTC

BMW DTC P1C4C – Universal Charger Extension Control Module Crash Clamp Voltage Sensor Circuit High

DTC P1C4C meaning on BMW

DTC P1C4C on a BMW refers to the Universal Charger Extension Control Module Crash Clamp Voltage Sensor Circuit High. This diagnostic trouble code indicates that there is a high voltage reading detected in the crash clamp voltage sensor circuit of the universal charger extension control module.

BMW DTC P1C4C symptoms

Symptoms of BMW DTC P1C4C may include:

• Check Engine Light illuminated
• Reduced engine performance
• Vehicle may go into limp mode

BMW DTC P1C4C causes

Common causes of BMW DTC P1C4C include:

• Faulty universal charger extension control module
• Wiring or connection issues in the crash clamp voltage sensor circuit
• High voltage spikes or fluctuations

BMW DTC P1C4C seriousness

The seriousness of BMW DTC P1C4C lies in the potential impact on the vehicle’s performance and safety. Ignoring this fault code can lead to further electrical issues and may affect the drivability of the vehicle.

How to diagnose DTC P1C4C on BMW

To diagnose DTC P1C4C on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connections in the crash clamp voltage sensor circuit
3. Test the universal charger extension control module for proper operation
4. Check for any signs of high voltage spikes or fluctuations

How to fix DTC P1C4C on BMW

To fix DTC P1C4C on a BMW, you can:

1. Replace the faulty universal charger extension control module
2. Repair any damaged wiring or connections in the crash clamp voltage sensor circuit
3. Address any high voltage issues that may be causing the fault code

How to erase DTC P1C4C on BMW

To erase DTC P1C4C on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code
2. After fixing the underlying issue, perform a drive cycle to ensure the fault code does not return

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.