Low Beam Operation

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. 76, located in the IPDM E/R]
Through IPDM E/R terminal 20
To headlamp RH terminal 3
To 15A fuse [No. 86, located in the IPDM E/R]
Through IPDM E/R terminal 30
To headlamp LH terminal 3.

Ground is supplied

To headlamp RH terminal 5
Through grounds E17 and E43
To headlamp LH terminal 5
Through grounds E17 and E43.

With power and ground supplied, low beam headlamps illuminate.