System Description: Notes

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 (intelligent power distribution module engine room), and
through 50A fusible link (letter f , located in the fuse and fusible link box)
to BCM (body control module) terminal 70, and
to 15A fuse (No. 60, located in the fuse and relay box)
through 15A fuse (No. 60, located in the fuse and relay box)
to trailer turn relay LH and RH terminal 5, and
through 10A fuse (No. 32, located in the IPDM E/R)
through IPDM E/R terminal 61
to trailer tow relay 1 terminal 3, and
through 20A fuse (No. 53, located in the IPDM E/R)
to CPU (central processing unit) of the IPDM E/R, and
to tail lamp relay, located in the IPDM E/R, and
through 30A fusible link (letter j , located in the fuse and fusible link box)
to trailer tow relay 2 terminals 3 and 6, and
through 40A fusible link (letter k , located in the fuse and fusible link box)
to electric brake (pre-wiring) terminal 5.

With the ignition switch in the 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, and
through 10A fuse (No. 51, located in the IPDM E/R)
to trailer tow relay 2 terminal 1.

Ground is supplied

to BCM terminal 67
to electric brake (pre-wiring) terminal 1 and
to trailer tow relay 1 terminal 2
through grounds M57, M61 and M79, and
to IPDM E/R terminals 38 and 59
to trailer tow relay 2 terminal 2
to trailer connector terminal 2
to trailer turn relay LH and RH terminal 2
through grounds E9, E15 and E24.