P1C51 – BMW DTC

BMW DTC P1C51 – Universal Charger Extension Control Module System Voltage Sensor Circuit Low

DTC P1C51 meaning on BMW

DTC P1C51 on a BMW refers to the Universal Charger Extension Control Module System Voltage Sensor Circuit Low. This diagnostic trouble code indicates that there is a low voltage condition detected in the system voltage sensor circuit of the universal charger extension control module.

BMW DTC P1C51 symptoms

Symptoms of BMW DTC P1C51 may include:

• Check Engine Light illuminated on the dashboard
• Reduced charging performance
• Issues with the charging system

BMW DTC P1C51 causes

Common causes of BMW DTC P1C51 include:

• Faulty system voltage sensor
• Wiring or connection issues in the system voltage sensor circuit
• Issues with the universal charger extension control module

BMW DTC P1C51 seriousness

While BMW DTC P1C51 may not cause immediate drivability issues, it is important to address this fault promptly to prevent potential charging system failures and ensure proper vehicle operation.

How to diagnose DTC P1C51 on BMW

To diagnose BMW DTC P1C51, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
2. Inspect the system voltage sensor and its circuit for any visible damage or loose connections
3. Perform voltage tests on the sensor circuit to determine if the voltage readings are within specifications

How to fix DTC P1C51 on BMW

To fix BMW DTC P1C51, you may need to:

1. Replace the faulty system voltage sensor if it is determined to be the cause of the low voltage condition
2. Repair any damaged wiring or connections in the system voltage sensor circuit
3. If necessary, replace the universal charger extension control module

How to erase DTC P1C51 on BMW

To erase BMW DTC P1C51 from the vehicle’s computer, you can:

1. Use a diagnostic scanner to clear the fault codes stored in the system
2. After making the necessary repairs, ensure that the issue is resolved before clearing the fault code

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.