Linear pressure solenoid SLU, SLS, SLT
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Activating the linear pressure solenoids SLU, SLS and SLT.
"Clicking sound" in the transmission (use a stethoscope) and the current must vary.