System Description: Outline

WARNING: This page is about a different car, the 2006 Infiniti G35. 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 IPDM E/R (intelligent power distribution module engine room), from battery direct,
through 15A fuse (No. 88, located in IPDM E/R)
to front fog lamp relay located in IPDM E/R,
through 10A fuse (No. 71, located in IPDM E/R)
to CPU (central processing unit) located in IPDM E/R,
through 15A fuse (No. 78, located in IPDM E/R)
to CPU located in IPDM E/R,
through 50A fusible link (letter F, located in fuse and fusible link block)
to BCM terminal 55,
through 10A fuse [No. 18, located in fuse block (J/B)]
to BCM terminal 42,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 21.

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

to ignition relay located in IPDM E/R, from battery direct,
through 10A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38,
through 10A fuse [No. 14, located in fuse block (J/B)]
to combination meter terminals 22 and 23.

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

through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 11.

Ground is supplied

to BCM terminal 52 and
to combination meter terminals 1, 24 and 25
through grounds M30 and M66,
to IPDM E/R terminals 38 and 60
through grounds E17 and E43.