Operation By Lighting Switch

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM 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 across the CAN communication lines. The CPU in the IPDM E/R controls the tail lamp relay coil, which when energized, directs power

Through 10 A fuse (No. 37, located in the IPDM E/R)
Through IPDM E/R terminal 57
To front combination lamp LH and RH terminal 3
To license plate lamps terminal + and
To rear combination lamp LH and RH terminal 3.

Ground is supplied

To front combination lamp LH and RH terminal 4
Through grounds E9, E15 and E24, and
To rear combination lamp LH terminal 1
Through grounds B7 and B19, and
To rear combination lamp RH terminal 1 and
To license plate lamps terminal -
Through grounds B117 and B132.
With power and ground supplied, the parking, license plate and tail lamps illuminate.