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P106B – BMW DTC

BMW DTC P106B – H2-Rail Temperature Sensor Circuit High (Bank 1)

DTC P106B meaning on BMW

DTC P106B on a BMW indicates a fault with the H2-Rail Temperature Sensor Circuit on Bank 1. This fault code is specific to the hydrogen fuel system in certain BMW models.

BMW DTC P106B symptoms

Symptoms of DTC P106B on a BMW may include:

  • Check Engine Light illuminated
  • Reduced engine performance
  • Possible fuel efficiency decrease

BMW DTC P106B causes

Common causes of DTC P106B on a BMW include:

  • Faulty H2-Rail Temperature Sensor
  • Wiring or connector issues in the sensor circuit
  • Hydrogen fuel system malfunctions

BMW DTC P106B seriousness

While DTC P106B may not cause immediate drivability issues, it is important to address this fault to prevent potential long-term damage to the hydrogen fuel system in the BMW.

How to diagnose DTC P106B on BMW

To diagnose DTC P106B on a BMW, follow these steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the H2-Rail Temperature Sensor and its wiring for any visible damage
  3. Test the sensor’s resistance and voltage readings
  4. Check for hydrogen fuel system leaks or malfunctions

How to fix DTC P106B on BMW

To fix DTC P106B on a BMW, consider the following:

  1. Replace the faulty H2-Rail Temperature Sensor
  2. Repair or replace any damaged wiring or connectors in the sensor circuit
  3. Address any hydrogen fuel system issues that may be contributing to the fault

How to erase DTC P106B on BMW

To erase DTC P106B on a BMW, use a diagnostic scanner to clear the fault code after the underlying issue has been resolved. This will reset the Check Engine Light and ensure the fault does not reoccur.

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

← All BMW Diagnostic Trouble Codes

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