Low Beam Operation

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 2ND position, the BCM receives input requesting the headlamps to illuminate. This input is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the headlamp low relay coil. When energized, this relay directs power

Through 15A fuse (No. 41, located in the IPDM E/R)
Through IPDM E/R terminal 54
To front combination lamp RH terminal 5, and
Through 15A fuse (No. 40, located in the IPDM E/R)
Through IPDM E/R terminal 52
To front combination lamp LH terminal 5.

Ground is supplied

To front combination lamp LH and RH terminal 1
Through grounds E9, E15 and E24.

With power and ground supplied, low beam headlamps illuminate.