BMW DTC P1D34 – A/C Compressor Motor Current Sensor Phase V Deviation to Phase U/W Too High
DTC P1D34 meaning on BMW
DTC P1D34 on a BMW indicates that the A/C compressor motor current sensor has detected a phase V deviation to phase U/W that is too high. This means that there is an issue with the electrical current being supplied to the A/C compressor motor, potentially leading to improper functioning of the air conditioning system.
BMW DTC P1D34 symptoms
Symptoms of DTC P1D34 on a BMW may include:
- Malfunctioning air conditioning system
- Reduced cooling performance
- Strange noises coming from the A/C compressor
- Dashboard warning light related to the A/C system
BMW DTC P1D34 causes
Common causes of DTC P1D34 on a BMW include:
- Faulty A/C compressor motor
- Issues with the A/C compressor motor current sensor
- Electrical wiring problems
- Faulty control module
BMW DTC P1D34 seriousness
DTC P1D34 should be addressed promptly as it can lead to poor air conditioning performance and discomfort while driving, especially in hot weather. Ignoring this issue may result in further damage to the A/C system components.
How to diagnose DTC P1D34 on BMW
To diagnose DTC P1D34 on a BMW, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the A/C compressor motor and related components for any visible damage
- Test the A/C compressor motor current sensor for proper operation
- Check the electrical connections and wiring for any issues
How to fix DTC P1D34 on BMW
To fix DTC P1D34 on a BMW, the following steps may be taken:
- Replace the faulty A/C compressor motor if necessary
- Repair or replace the A/C compressor motor current sensor
- Address any electrical wiring issues or connections that may be causing the problem
- Reset the fault codes and test the A/C system for proper operation
How to erase DTC P1D34 on BMW
To erase DTC P1D34 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made to address the underlying issue, the fault codes can be reset to ensure that the A/C system is functioning correctly.
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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