BMW DTC P1752 – Secondary Pressure Solenoid Short Circuit
DTC P1752 meaning on BMW
The Diagnostic Trouble Code (DTC) P1752 for BMW indicates a short circuit in the secondary pressure solenoid circuit. This code is specific to the transmission system and is related to the control of hydraulic pressure within the transmission.
BMW DTC P1752 symptoms
Symptoms of DTC P1752 in 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 P1752 causes
The primary causes of DTC P1752 in a BMW are typically related to a faulty secondary pressure solenoid, damaged wiring or connectors in the solenoid circuit, or issues with the transmission control module (TCM). It can also be triggered by low transmission fluid levels or contaminated fluid.
BMW DTC P1752 seriousness
DTC P1752 should be addressed promptly as it can lead to further damage to the transmission system if left unresolved. Ignoring this code may result in more severe transmission issues and potentially costly repairs in the future.
How to diagnose DTC P1752 on BMW
To diagnose DTC P1752 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the TCM. They would then inspect the secondary pressure solenoid, wiring, and connectors for any visible damage. Testing the solenoid’s resistance and checking the transmission fluid level and condition are also essential steps in the diagnostic process.
How to fix DTC P1752 on BMW
Fixing DTC P1752 on a BMW usually involves replacing the faulty secondary pressure solenoid if it is determined to be the root cause. Repairing or replacing damaged wiring or connectors in the solenoid circuit may also be necessary. Ensuring the transmission fluid is at the correct level and in good condition is crucial. In some cases, reprogramming the TCM or performing a transmission flush may be required.
How to erase DTC P1752 on BMW
Once the underlying issue causing DTC P1752 has been resolved, the code can be cleared using a diagnostic scanner. This will reset the TCM and remove the fault code from the system. It is important to verify that the issue has been successfully 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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