High Beam Operation/Flash-to-Pass Operation

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

With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input requesting the headlamp high beams to illuminate. This input is communicated to the IPDM E/R across the CAN communication lines. The CPU of the combination meter controls the ON/OFF status of the HIGH BEAM indicator. The CPU of the IPDM E/R controls the headlamp high relay coil. When energized, this relay directs power

through 10A fuse (No. 34, located in the IPDM E/R)
through IPDM E/R terminal 56
to front headlamp RH terminal 1, and
through 10A fuse (No. 35, located in the IPDM E/R)
through IPDM E/R terminal 55
to front headlamp LH terminal 1.

Ground is supplied

to front headlamp RH terminal 2,
to daytime light relay 1 terminal 4, and
to daytime light relay 2 terminal 1
through grounds E9, E15 and E24.

When the CPU of the IPDM E/R energizes the headlamp high relay, it de-energizes daytime relay 1. When deenergized, this relay supplies ground

to front headlamp LH terminal 2
through daytime light relay 1 terminal 3.

With power and ground supplied, the high beam headlamps illuminate.