BMW DTC P08C8 – Pressure Control Solenoid ‘M’ Control Circuit/Open
DTC P08C8 meaning on BMW
DTC P08C8 on a BMW indicates an issue with the Pressure Control Solenoid ‘M’ control circuit being open. This means that the control circuit for the solenoid that regulates pressure in the transmission is not functioning properly, leading to potential transmission performance issues.
BMW DTC P08C8 symptoms
Symptoms of DTC P08C8 on a BMW may include harsh shifting, delayed shifting, transmission slipping, decreased fuel efficiency, and in some cases, the transmission may go into a limp mode where it operates in a limited capacity to prevent further damage.
BMW DTC P08C8 causes
The causes of DTC P08C8 on a BMW can vary, but common reasons include a faulty pressure control solenoid ‘M’, damaged wiring or connectors in the control circuit, low transmission fluid levels, or a malfunctioning transmission control module.
BMW DTC P08C8 seriousness
DTC P08C8 should be taken seriously 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 down the line.
How to diagnose DTC P08C8 on BMW
To diagnose DTC P08C8 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the pressure control solenoid ‘M’, its wiring, and connectors. Testing the solenoid’s resistance and checking for proper voltage supply are common diagnostic steps.
How to fix DTC P08C8 on BMW
Fixing DTC P08C8 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 proper transmission fluid levels, and addressing any issues with the transmission control module can help resolve this fault code.
How to erase DTC P08C8 on BMW
To erase DTC P08C8 on a BMW, a diagnostic scanner can be used to clear the fault code from the vehicle’s memory. However, it is important to address and fix the underlying issue causing the fault code before clearing it 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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