ALFA 159 TRAINING MATERIAL
Fiat Auto S.p.A.
After Sales Training
Solenoids
Linear solenoids: four linear
solenoids are provided, which
control, in a linear fashion, the
hydraulic pressure of almost all the
brakes/clutches
ON/OFF solenoids: two ON/OFF
solenoids are provided, which
control the “B2” brake for the
exhaust brake in the first gear
SLT linear solenoid: it controls, in
a linear fashion, the line pressure
depending on the throttle signal
and the engine torque
SLU linear solenoid: it controls, in
a linear fashion, the lock-up
pressure with regard to:
throttle signal
engine revs
gearbox input speed
gearbox output speed
