System Description
WARNING: This page is about a different car, the 2020 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
- "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.