Low Beam Operation

WARNING: This page is about a different car, the 2009 Nissan Sentra. 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 an input signal requesting the headlamps to illuminate. This input signal is communicated to the IPDM E/R via the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp low relay coil, which when energized, directs power

through 15A fuse (No. 41, located in IPDM E/R)
through IPDM E/R terminal 54
to front combination lamp RH terminal 3,
through 15A fuse (No. 40, located in IPDM E/R)
through IPDM E/R terminal 52
to daytime light relay 2 terminals 1 and 3 (energizing the relay) and
through daytime light relay 2 terminal 5
to front combination lamp LH terminal 3.

Ground is supplied

to front combination lamp RH terminal 5
through grounds E9, E15 and E24,
to headlamp LH terminal 5 via
daytime light relay 1 terminals 3 and 4
through grounds E9, E15 (all models) and E24 (with MR20DE).

With power and ground supplied, low beam headlamps illuminate.