V50 L5-2.4L VIN 39 B5244S7 (2005)
Starter Motor: Description and Operation
Function
Function
Engaging the pinion
When the ignition key is turned to position III, the starter motor relay (2/35) receives power at terminal 86. If the immobilizer check is OK, then the
engine control module (ECM) grounds the relay at terminal 85 and the relay is activated. Control solenoid terminal 6/25:2 is powered from relay
terminal 87. This creates a magnetic field in hold-in and pull-in winding. This moves the moving steel core. When the core shifts a lever, fixed in the end
of the core, presses the starter motor pinion to engage in the ring gear on the flywheel/flange.
The pull-in winding is grounded through the rotor and carbon brushes. This ground connection is lost when the moving switches close the circuit and the
current passes from the solenoid to the starter motor.
Planetary train
