Power Supply And Ground Circuit

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

through 50A fusible link (letter F, located in the fuse and fusible link box)
to BCM terminal 55,
through 10A fuse [No. 18, located in the fuse block (J/B)]
to BCM terminal 42,
through 15A fuse [No. 35, located in the fuse block (J/B)]
to horn relay terminal 2,
through 10A fuse [No. 71, located in the IPDM E/R]
to IPDM E/R internal CPU,
through 15A fuse [No. 78, located in the IPDM E/R]
to IPDM E/R internal CPU,
through 10A fuse [No. 19, located in the fuse block (J/B)]
to security indicator lamp terminal 1.
With the ignition switch in the ACC or ON position, power is supplied
through 10A fuse [No. 6, located in the fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to BCM terminal 52
through body grounds M30 and M66.