Solenoid Color: Yellow
Main function:
* Pressure control in clutch pack B1
Location:
* Hydroblock
Signs of malfunction:
*Hard gear changes (especially from 2nd to 3rd)
*Loss of transmission
* Clutch slipping
* Fault codes related to pressure in package B1
Causes of malfunction:
* Solenoid wear
* Valve block contamination
* Electrical wiring fault
Consequences of the malfunction:
* Serious damage to the automatic transmission, requiring expensive repairs
Recommended actions:
* Check the solenoid and valve body for dirt and wear.
* Check electrical wiring to ensure there are no breaks or poor connections.
* If necessary, replace the faulty solenoid or valve body.