BMW DTC P1730 – Pressure Control Solenoid Unpermitted Activation
DTC P1730 meaning on BMW
The DTC P1730 on a BMW indicates an issue with the Pressure Control Solenoid Unpermitted Activation. This means that the transmission control module has detected an unexpected activation of the pressure control solenoid, which is responsible for regulating hydraulic pressure within the transmission.
BMW DTC P1730 symptoms
Symptoms of the DTC P1730 on a BMW may include harsh shifting, delayed shifting, transmission slipping, or the transmission going into limp mode. The vehicle may also experience decreased fuel efficiency and overall performance issues.
BMW DTC P1730 causes
The common causes of the DTC P1730 on a BMW include a faulty pressure control solenoid, wiring issues, low transmission fluid level, or a malfunctioning transmission control module. Additionally, mechanical problems within the transmission itself can also trigger this fault code.
BMW DTC P1730 seriousness
The DTC P1730 is a serious issue that should be addressed promptly. Ignoring this fault code can lead to further damage to the transmission and potentially result in costly repairs. Driving with this fault can also pose a safety risk as it may affect the vehicle’s drivability.
How to diagnose DTC P1730 on BMW
To diagnose the DTC P1730 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a thorough inspection of the transmission system. This may involve checking the pressure control solenoid, inspecting the wiring for any damage, and ensuring the transmission fluid level is adequate.
How to fix DTC P1730 on BMW
Fixing the DTC P1730 on a BMW may involve replacing the pressure control solenoid if it is found to be faulty. Additionally, repairing any damaged wiring, ensuring the transmission fluid is at the correct level, and addressing any other underlying issues within the transmission system can help resolve this fault code.
How to erase DTC P1730 on BMW
Once the underlying issue causing the DTC P1730 on a BMW has been fixed, the fault code can be erased using a diagnostic scanner. By clearing the code, the vehicle’s onboard computer will reset and monitor the system for any recurring issues. It is important to ensure that the fault has been properly addressed before clearing the code to prevent it from reoccurring.
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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