System Description

SYSTEM DIAGRAM 

Courtesy of NISSAN

SYSTEM DESCRIPTION 

• "B" terminal is constantly supplied with battery power.
• When selector lever is P or N, power is supplied to starter relay by transmission range switch.
• When starter operating condition is satisfied, IPDM E/R turns starter relay ON by starter relay control signal.
• When engine cranking condition is satisfied, BCM turns starter cut relay ON by starter cut relay control signal.
• Then battery power is supplied to starter motor ("S" terminal) through starter cut relay and starter relay.