BMW DTC P189D – Safety Function Pressure Control Solenoid Stuck
DTC P189D meaning on BMW
The DTC P189D on a BMW refers to the Safety Function Pressure Control Solenoid Stuck. This diagnostic trouble code indicates that there is an issue with the pressure control solenoid in the safety function system of the vehicle.
BMW DTC P189D symptoms
Symptoms of the BMW DTC P189D may include erratic shifting behavior, transmission slipping, harsh shifting, or the transmission going into limp mode. The vehicle may also display a warning light on the dashboard indicating a transmission fault.
BMW DTC P189D causes
The DTC P189D in a BMW can be caused by a faulty pressure control solenoid, wiring issues, low transmission fluid level, or a malfunction in the transmission control module.
BMW DTC P189D seriousness
Ignoring the DTC P189D in a BMW can lead to further damage to the transmission system and potentially result in costly repairs. It is important to address this issue promptly to prevent any long-term damage to the vehicle.
How to diagnose DTC P189D on BMW
To diagnose the DTC P189D on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then perform a visual inspection of the pressure control solenoid and its wiring to check for any visible damage or loose connections. Additionally, testing the transmission fluid level and quality may also be necessary.
How to fix DTC P189D on BMW
Fixing the DTC P189D on a BMW may involve replacing the pressure control solenoid if it is found to be faulty. Checking and repairing any damaged wiring or connectors related to the solenoid is also important. Ensuring the transmission fluid level is correct and of good quality is essential. In some cases, reprogramming the transmission control module may be necessary to clear the fault code.
How to erase DTC P189D on BMW
To erase the DTC P189D 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 cleared to reset the system and turn off the warning light on the dashboard.
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.