BMW DTC P27C5 – Pressure Control Solenoid ¿P¿ Control Circuit/Open
DTC P27C5 meaning on BMW
The DTC P27C5 code on a BMW indicates an issue with the Pressure Control Solenoid ‘P’ Control Circuit being open. This means that the control circuit for the pressure control solenoid is not functioning properly, which can lead to transmission performance issues.
BMW DTC P27C5 symptoms
Symptoms of the DTC P27C5 code on a BMW may include harsh shifting, delayed shifting, transmission slipping, decreased fuel efficiency, and in some cases, the transmission may go into limp mode.
BMW DTC P27C5 causes
The common causes of the DTC P27C5 code on a BMW include a faulty pressure control solenoid, damaged wiring or connectors in the control circuit, low transmission fluid level, or a malfunctioning transmission control module.
BMW DTC P27C5 seriousness
The DTC P27C5 code should be addressed promptly as it can lead to further damage to the transmission if left unresolved. Ignoring this issue may result in more severe transmission problems and potentially costly repairs.
How to diagnose DTC P27C5 on BMW
To diagnose the DTC P27C5 code on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the vehicle’s computer. They would then inspect the pressure control solenoid, check the wiring and connectors for any damage, and ensure that the transmission fluid level is adequate. Further testing may be required to pinpoint the exact cause of the issue.
How to fix DTC P27C5 on BMW
Fixing the DTC P27C5 code on a BMW may involve replacing the pressure control solenoid 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 addressing any issues with the transmission control module can help resolve the problem. It is recommended to have the repairs done by a qualified mechanic to ensure proper diagnosis and resolution of the issue.
How to erase DTC P27C5 on BMW
Once the underlying issue causing the DTC P27C5 code on a BMW has been fixed, the code can be erased using a diagnostic scanner. The scanner can clear the fault codes stored in the vehicle’s computer, resetting the system and turning off the check engine light. It is important to verify that the repairs have been successful and that the code does not return after clearing it.
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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