P1C2E – BMW DTC

BMW DTC P1C2E – Battery Charger Control Module Temperature Sensor ‘A’/’B’ Correlation

DTC P1C2E meaning on BMW

DTC P1C2E on a BMW refers to the Battery Charger Control Module Temperature Sensor ‘A’/’B’ Correlation. This diagnostic trouble code indicates that there is a discrepancy between the readings of the temperature sensors ‘A’ and ‘B’ in the battery charger control module.

BMW DTC P1C2E symptoms

Symptoms of BMW DTC P1C2E may include:

• Check Engine Light illuminated
• Reduced battery charging efficiency
• Potential battery charging issues

BMW DTC P1C2E causes

Possible causes of BMW DTC P1C2E include:

• Faulty battery charger control module
• Defective temperature sensors ‘A’ or ‘B’
• Wiring or connection issues

BMW DTC P1C2E seriousness

The seriousness of BMW DTC P1C2E lies in the potential impact on the battery charging system. Ignoring this DTC could lead to improper charging of the vehicle’s battery, potentially resulting in starting or electrical issues.

How to diagnose DTC P1C2E on BMW

To diagnose BMW DTC P1C2E, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes.
2. Inspect the battery charger control module and its connections.
3. Check the resistance and functionality of temperature sensors ‘A’ and ‘B’.
4. Verify the wiring integrity between the sensors and the control module.

How to fix DTC P1C2E on BMW

To fix BMW DTC P1C2E, you may need to:

1. Replace the faulty battery charger control module if necessary.
2. Replace the defective temperature sensors ‘A’ or ‘B’.
3. Repair any damaged wiring or connections.
4. Clear the fault codes and perform a test drive to ensure the issue is resolved.

How to erase DTC P1C2E on BMW

To erase BMW DTC P1C2E, you can:

1. Use a diagnostic scanner to clear the fault codes.
2. Perform a battery reset by disconnecting the vehicle’s battery for a few minutes.
3. After the reset, reconnect the battery and start the vehicle to see if the DTC reappears.

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.