P1C26 – BMW DTC

BMW DTC P1C26 – DC/DC Converter Internal DC Link Current Sensor Circuit Low

DTC P1C26 meaning on BMW

DTC P1C26 on a BMW refers to the DC/DC Converter Internal DC Link Current Sensor Circuit Low. This diagnostic trouble code indicates that there is a low voltage signal detected in the internal DC link current sensor circuit of the DC/DC converter.

BMW DTC P1C26 symptoms

Symptoms of DTC P1C26 on a BMW may include:

• Check Engine Light illuminated
• Reduced power or performance
• Issues with electrical systems

BMW DTC P1C26 causes

Common causes of DTC P1C26 on a BMW include:

• Faulty DC/DC converter
• Wiring or connection issues in the internal DC link current sensor circuit
• Defective internal DC link current sensor

BMW DTC P1C26 seriousness

The seriousness of DTC P1C26 on a BMW depends on the underlying cause. Ignoring this fault can lead to further electrical system issues and potential drivability concerns. It is recommended to address this DTC promptly to prevent any additional damage.

How to diagnose DTC P1C26 on BMW

To diagnose DTC P1C26 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the wiring and connections in the internal DC link current sensor circuit
3. Test the internal DC link current sensor for proper operation
4. Check the DC/DC converter for any faults

How to fix DTC P1C26 on BMW

To fix DTC P1C26 on a BMW, the following steps may be taken:

1. Repair or replace any damaged wiring or connections in the internal DC link current sensor circuit
2. Replace the internal DC link current sensor if found to be faulty
3. If the DC/DC converter is defective, it may need to be replaced
4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P1C26 on BMW

To erase DTC P1C26 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code
2. Ensure that the underlying issue causing the fault code has been addressed
3. Perform a test drive to confirm that 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

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