System Description: Notes

WARNING: This page is about a different car, the 2007 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.

The front fog lamps are controlled by lighting switch inputs to the BCM (body control module). The lighting switch must be in the 1ST or 2ND position with the high beams OFF before the BCM will request the IPDM E/R (intelligent power distribution module engine room) to turn the front fog lamps on. The BCM requests the front fog lamps over the CAN communication lines to the IPDM E/R. The CPU (central processing unit) of the IPDM E/R controls the front fog lamp relay coil ground. When energized, the relay directs power to the front fog lamps.

OUTLINE

Power is supplied at all times:

to front fog lamp relay (located in IPDM E/R),
to ignition relay (located in IPDM E/R),
through 15A fuse (No. 52, located in IPDM E/R) and
through 20A fuse (No. 53, located in IPDM E/R)
to CPU located in IPDM E/R,
through 40A fusible link (letter g, located in the fuse and fusible link box)
to BCM terminal 70,
through 10A fuse [No. 8, located in fuse block (J/B)]
to BCM terminal 57,
through 10A fuse [No. 13, located in fuse block (J/B)]
to combination meter terminal 27.

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

to ignition relay (located in IPDM E/R),
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 38.

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

through 10A fuse [No. 20, located in fuse block (J/B)]
to BCM terminal 11.

Ground is supplied

to BCM terminal 67
through grounds M57 and M61,
to IPDM E/R terminals 39 and 59
through grounds E15 and E24.