System Description: Notes

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

Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay. This relay, when energized, directs power to the illumination lamps, which then illuminate.

Power is supplied at all times

to ignition relay, located in the IPDM E/R, and
through 15A fuse (No. 34, located in the IPDM E/R)
to CPU of the IPDM E/R, and
through 15A fuse (No. 41, located in the IPDM E/R)
to tail lamp relay, located in the IPDM E/R, and
through 50A fusible link (letter f, located in the fuse and fusible link box)
to BCM terminal 55, and
through 10A fuse [No. 21, located in fuse block (J/B)]
to BCM terminal 42, and
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 24, and
through BCM terminal 54 (with front only power window anti-pinch system)
to power window and door lock/unlock switch RH terminal 10, and
through BCM terminal 54 (with front and rear power window anti-pinch system)
to power window and door lock/unlock switch RH terminal 10
to rear power window switch (LH and RH) terminal 10, and
through BCM terminal 53 (with front only power window anti-pinch system)
to main power window and door lock/unlock switch LH terminal 10
to rear power window switch (LH and RH) terminal 6, and
through BCM terminal 53 (with front and rear power window anti-pinch system)
to main power window and door lock/unlock switch LH terminal 10.

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. 1, located in the fuse block (J/B)]
to BCM terminal 38, and
through 10A fuse [No. 14, located in the fuse block (J/B)]
to combination meter terminal 23.

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
to combination meter terminals 10, 11 and 12
through grounds M57, M61, and M79, and
to IPDM E/R terminals 38 and 60
through grounds E15 and E24.