Low Beam Operation
WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
With the lighting switch in 2ND position, the BCM (body control module) receives input signal requesting the headlamps 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) in the IPDM E/R controls the headlamp low relay coil, which when energized, directs power
- to 15A fuse [No. 36, located in the IPDM E/R]
- through IPDM E/R terminal 20
- to headlamp RH terminal 3
- to 15A fuse [No. 45, located in the IPDM E/R]
- through IPDM E/R terminal 30
- to headlamp LH terminal 3.
Ground is supplied at all times
to headlamp RH terminal 4
through grounds E15 and E24
to headlamp LH terminal 4
through grounds E15 and E24.
With power and ground supplied, low beam headlamps illuminate.