P1D37 – BMW DTC

BMW DTC P1D37 – A/C Compressor Motor Phase W Current Sensor Circuit High

DTC P1D37 meaning on BMW

DTC P1D37 on a BMW indicates an issue with the A/C compressor motor phase W current sensor circuit. This fault code is specific to the electrical system of the air conditioning compressor motor.

BMW DTC P1D37 symptoms

Symptoms of DTC P1D37 on a BMW may include:

• Malfunctioning air conditioning system
• Reduced cooling performance
• Strange noises coming from the A/C compressor

BMW DTC P1D37 causes

Common causes of DTC P1D37 on a BMW include:

• Faulty A/C compressor motor phase W current sensor
• Wiring issues in the sensor circuit
• Corrosion or poor connections in the circuit

BMW DTC P1D37 seriousness

The seriousness of DTC P1D37 on a BMW depends on the extent of the issue. While it may not directly affect the drivability of the vehicle, a malfunctioning A/C system can be uncomfortable, especially in extreme weather conditions.

How to diagnose DTC P1D37 on BMW

To diagnose DTC P1D37 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and any related freeze frame data.
2. Inspect the A/C compressor motor phase W current sensor and its wiring for any visible damage or corrosion.
3. Perform a continuity test on the sensor circuit to check for any open or short circuits.

How to fix DTC P1D37 on BMW

To fix DTC P1D37 on a BMW, you may need to:

1. Replace the faulty A/C compressor motor phase W current sensor.
2. Repair any damaged wiring or connectors in the sensor circuit.
3. Clear the fault code and test the A/C system for proper operation.

How to erase DTC P1D37 on BMW

To erase DTC P1D37 on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code from the vehicle’s memory.
2. Ensure that the underlying issue causing the fault code has been resolved before clearing it.

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.