System Description: Notes

Control of the parking, license plate, side marker and tail lamp operation is dependent upon the position of lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control module) receives input signal requesting the parking, license plate, side marker and tail 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) located in the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to parking, license plate, side marker and tail lamps, which then illuminate.

Power is supplied at all times

through 10A fuse (No. 71, located in IPDM E/R)
to CPU located in IPDM E/R, and
to tail lamp relay, located in IPDM E/R,
through 15A fuse (No. 78 located in IPDM E/R)
to CPU located in IPDM E/R.

Power is also supplied at all times

through 50A fusible link (letter F, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No. 18, located in fuse block (J/B)]
to BCM (body control module) terminal 42.

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

to CPU located in IPDM E/R, from battery direct,
through 10A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38.

With ignition switch 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
through grounds M30 and M66,
to IPDM E/R terminals 38 and 60
through grounds E17 and E43.