BMW DTC P1D28 – A/C Compressor Motor Voltage Sensor ‘B’ Voltage Out of Range High
DTC P1D28 meaning on BMW
DTC P1D28 on a BMW indicates that the A/C compressor motor voltage sensor ‘B’ is detecting a voltage that is out of range high. This means that the sensor is reading a voltage signal that exceeds the specified parameters set by the vehicle’s computer system.
BMW DTC P1D28 symptoms
Symptoms of DTC P1D28 on a BMW may include the air conditioning system not functioning properly or the A/C compressor not engaging when it should. The vehicle’s climate control system may also display an error message related to the A/C compressor.
BMW DTC P1D28 causes
The high voltage reading detected by the A/C compressor motor voltage sensor ‘B’ on a BMW can be caused by various factors. These may include a faulty sensor, wiring issues, a malfunctioning A/C compressor motor, or problems with the vehicle’s electrical system.
BMW DTC P1D28 seriousness
While DTC P1D28 may not directly affect the drivability of the vehicle, it can impact the comfort and functionality of the air conditioning system. Operating the A/C compressor with incorrect voltage readings can potentially lead to further damage to the system if left unresolved.
How to diagnose DTC P1D28 on BMW
To diagnose DTC P1D28 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and further investigate the A/C compressor motor voltage sensor ‘B’. They may perform voltage tests, inspect the sensor and its wiring for any visible damage, and check the A/C compressor motor for proper operation.
How to fix DTC P1D28 on BMW
Fixing DTC P1D28 on a BMW may involve replacing the A/C compressor motor voltage sensor ‘B’ if it is found to be faulty. Additionally, any damaged wiring should be repaired, and the A/C compressor motor should be tested to ensure it is functioning correctly. Once the issue is resolved, the fault code can be cleared from the vehicle’s computer system.
How to erase DTC P1D28 on BMW
To erase DTC P1D28 on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s computer system. Once the underlying issue has been addressed and fixed, the fault code can be reset, and the system should be rechecked to ensure the problem has been resolved.
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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