P1CD6 – BMW DTC

BMW DTC P1CD6 – DC/DC Converter High Voltage Current Sensor ‘B’ Circuit Current Implausible High

DTC P1CD6 meaning on BMW

DTC P1CD6 on a BMW refers to the DC/DC Converter High Voltage Current Sensor ‘B’ Circuit Current Implausible High fault. This diagnostic trouble code indicates that the current sensor ‘B’ circuit in the DC/DC converter is reporting a current reading that is unreasonably high, which could be due to a malfunction in the sensor or related components.

BMW DTC P1CD6 symptoms

Symptoms of DTC P1CD6 on a BMW may include:

  • Check Engine Light (MIL) illuminated
  • Reduced power or performance
  • Vehicle may go into a reduced power mode

BMW DTC P1CD6 causes

Common causes of DTC P1CD6 on a BMW include:

  • Failed DC/DC converter high voltage current sensor ‘B’
  • Wiring or connection issues in the current sensor circuit
  • Faulty DC/DC converter

BMW DTC P1CD6 seriousness

The seriousness of DTC P1CD6 on a BMW can vary. While the vehicle may still be operable with this fault, it is important to address it promptly to prevent potential damage to other components and ensure optimal performance.

How to diagnose DTC P1CD6 on BMW

To diagnose DTC P1CD6 on a BMW, you can 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 current sensor ‘B’ circuit
  3. Test the DC/DC converter high voltage current sensor ‘B’ for proper operation
  4. Check the DC/DC converter for any faults

How to fix DTC P1CD6 on BMW

To fix DTC P1CD6 on a BMW, you may need to:

  1. Replace the DC/DC converter high voltage current sensor ‘B’
  2. Repair any damaged wiring or connections in the circuit
  3. If the DC/DC converter is faulty, it may need to be replaced

How to erase DTC P1CD6 on BMW

To erase DTC P1CD6 on a BMW, you can:

  1. Use a diagnostic scanner to clear the fault code
  2. After the repair is completed, clear the code and perform a test drive to ensure the fault 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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