System Description: Outline

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

to ignition relay, located in the IPDM E/R, and
to front fog lamp relay, located in the IPDM E/R, and
through 20A fuse (No. 53, located in the IPDM E/R)
to CPU of the IPDM E/R, and
through 50A fusible link (letter f, located in the fuse and fusible link box)
to BCM terminal 70.

When the ignition switch is in ON or START position, power is supplied

to ignition relay, located in the IPDM E/R, and
through 10A fuse (No. 59, located in the fuse and relay box)
to BCM terminal 38.

Ground is supplied

to BCM terminal 67
through grounds M57, M61 and M79, and
to IPDM E/R terminals 38 and 59
through grounds E9, E15 and E24.