BMW DTC P27D7 – Pressure Control Solenoid ¿S¿ Control Circuit Low
DTC P27D7 meaning on BMW
The DTC P27D7 fault code on BMW vehicles indicates an issue with the Pressure Control Solenoid ‘S’ Control Circuit being detected as low. This fault code is specific to the transmission system and is related to the solenoid responsible for controlling hydraulic pressure within the transmission.
BMW DTC P27D7 symptoms
Symptoms of the DTC P27D7 on a BMW may include harsh shifting, delayed engagement when shifting gears, transmission slipping, or the transmission going into limp mode. The vehicle’s transmission may also exhibit erratic behavior or fail to shift properly.
BMW DTC P27D7 causes
The causes of the DTC P27D7 fault code on a BMW can vary, but common reasons include a faulty pressure control solenoid, damaged wiring or connectors in the solenoid circuit, low transmission fluid level, or internal transmission issues.
BMW DTC P27D7 seriousness
The DTC P27D7 fault code should be addressed promptly as it can lead to further transmission damage if left unresolved. Ignoring this fault code may result in more severe transmission issues and potentially costly repairs.
How to diagnose DTC P27D7 on BMW
To diagnose the DTC P27D7 on a BMW, a diagnostic scan tool capable of reading transmission fault codes is required. The technician will need to inspect the pressure control solenoid ‘S’ and its circuit for any visible damage, test the solenoid’s resistance, and check for proper voltage supply to the solenoid.
Possible steps for diagnosis:
- Perform a full system scan to retrieve the fault codes.
- Inspect the wiring and connectors related to the pressure control solenoid ‘S’.
- Test the resistance of the pressure control solenoid ‘S’.
- Check the transmission fluid level and condition.
How to fix DTC P27D7 on BMW
Fixing the DTC P27D7 on a BMW typically involves replacing the faulty pressure control solenoid ‘S’, repairing any damaged wiring or connectors, ensuring the transmission fluid is at the correct level, and clearing the fault code from the vehicle’s memory.
Possible steps for fixing:
- Replace the pressure control solenoid ‘S’ if found to be faulty.
- Repair any damaged wiring or connectors in the solenoid circuit.
- Top up or replace the transmission fluid if necessary.
- Clear the fault code using a diagnostic scan tool.
How to erase DTC P27D7 on BMW
To erase the DTC P27D7 fault code on a BMW, a diagnostic scan tool capable of clearing fault codes is needed. Once the underlying issue has been addressed and fixed, the fault code can be cleared from the vehicle’s memory.
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.