BMW DTC P090C – Clutch ‘B’ Actuator Control Circuit Low
DTC P090C meaning on BMW
The DTC P090C code on a BMW indicates an issue with the Clutch ‘B’ Actuator Control Circuit being detected as low. This means that the signal voltage in the circuit is below the expected range, causing the control module to trigger the fault code.
BMW DTC P090C symptoms
Symptoms of the DTC P090C code on a BMW may include:
- Check Engine Light (MIL) illuminated
- Transmission shifting issues
- Reduced vehicle performance
BMW DTC P090C causes
Common causes of the DTC P090C code on a BMW include:
- Faulty clutch actuator
- Wiring or connector issues in the clutch actuator circuit
- Defective control module
BMW DTC P090C seriousness
The DTC P090C code should be addressed promptly as it can lead to transmission problems and affect the overall drivability of the vehicle. Ignoring this code may result in further damage to the transmission system.
How to diagnose DTC P090C on BMW
To diagnose the DTC P090C code on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the clutch actuator and its wiring for any visible damage
- Check the voltage and continuity in the clutch actuator circuit
- Test the control module for proper operation
How to fix DTC P090C on BMW
To fix the DTC P090C code on a BMW, the following steps may be taken:
- Replace the faulty clutch actuator if necessary
- Repair any damaged wiring or connectors in the clutch actuator circuit
- Reset the fault codes and test drive the vehicle to ensure the issue is resolved
How to erase DTC P090C on BMW
To erase the DTC P090C code on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s control module. After clearing the code, it is recommended to test drive the vehicle to confirm that the issue has been resolved.
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.