P1D26 – BMW DTC

BMW DTC P1D26 – A/C Compressor Motor Voltage Sensor ‘B’ Circuit Low

DTC P1D26 meaning on BMW

DTC P1D26 on a BMW refers to the A/C Compressor Motor Voltage Sensor ‘B’ Circuit Low. This diagnostic trouble code indicates that there is a low voltage condition detected in the circuit related to the A/C compressor motor voltage sensor ‘B’.

BMW DTC P1D26 symptoms

Symptoms of DTC P1D26 on a BMW may include:

• Malfunctioning air conditioning system
• Reduced cooling performance
• Check Engine Light (CEL) illuminated on the dashboard

BMW DTC P1D26 causes

Common causes of DTC P1D26 on a BMW include:

• Faulty A/C compressor motor voltage sensor ‘B’
• Wiring issues or poor connections in the sensor circuit
• Low refrigerant levels in the A/C system

BMW DTC P1D26 seriousness

While DTC P1D26 may not cause immediate drivability issues, it can affect the comfort and functionality of the air conditioning system in the vehicle. It is recommended to address this issue to ensure proper cooling performance and prevent further damage to the A/C components.

How to diagnose DTC P1D26 on BMW

To diagnose DTC P1D26 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
2. Inspect the A/C compressor motor voltage sensor ‘B’ and its wiring for any visible damage or corrosion.
3. Check the refrigerant levels in the A/C system to ensure they are within the specified range.
4. Perform a voltage test on the sensor circuit to determine if the voltage levels are within the expected range.

How to fix DTC P1D26 on BMW

To fix DTC P1D26 on a BMW, you can try the following solutions:

1. Replace the faulty A/C compressor motor voltage sensor ‘B’.
2. Repair any damaged wiring or connections in the sensor circuit.
3. Ensure the A/C system is properly charged with refrigerant.
4. Clear the fault codes using a diagnostic scanner after the repairs are completed.

How to erase DTC P1D26 on BMW

To erase DTC P1D26 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the repairs have been made to address the underlying issue causing the fault code, you can reset the system and verify that the code has been successfully erased.

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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