BMW DTC P27B6 – Pressure Control Solenoid ‘M’ Control Circuit Range/Performance
DTC P27B6 meaning on BMW
DTC P27B6 indicates a fault with the Pressure Control Solenoid ‘M’ control circuit in a BMW vehicle. This fault occurs when the Engine Control Module (ECM) detects that the actual pressure control solenoid ‘M’ control circuit performance does not match the expected range.
BMW DTC P27B6 symptoms
Symptoms of DTC P27B6 in a BMW may include harsh shifting, transmission slipping, poor acceleration, and in some cases, the transmission may go into limp mode. The Check Engine Light (CEL) may also illuminate on the dashboard.
BMW DTC P27B6 causes
The common causes of DTC P27B6 in a BMW include a faulty pressure control solenoid ‘M’, damaged wiring or connectors in the control circuit, low transmission fluid level, or a malfunctioning ECM.
BMW DTC P27B6 seriousness
Ignoring DTC P27B6 in a BMW can lead to further damage to the transmission system, potentially resulting in costly repairs. It is important to address this issue promptly to prevent any long-term damage.
How to diagnose DTC P27B6 on BMW
To diagnose DTC P27B6 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then perform a visual inspection of the pressure control solenoid ‘M’, check the wiring and connectors for any damage, and test the solenoid’s resistance and operation.
How to fix DTC P27B6 on BMW
Fixing DTC P27B6 on a BMW may involve replacing the pressure control solenoid ‘M’ if it is found to be faulty. Additionally, repairing any damaged wiring or connectors in the control circuit, ensuring the transmission fluid level is correct, and resetting the ECM may be necessary to resolve the issue.
How to erase DTC P27B6 on BMW
After fixing the underlying issue causing DTC P27B6 on a BMW, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s ECM to monitor the system for any new faults.
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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