Low Beam Operation

With the lighting switch in 2ND position, the BCM receives an input signal requesting the headlamps to illuminate. The BCM then sends a signal, via the CAN communication lines, to the IPDM E/R requesting the low beam headlamps be turned ON. The CPU located in the IPDM E/R controls ground to 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 headlamp RH terminal 3, and
• Through 15A fuse (No. 40, located in IPDM E/R)
• Through IPDM E/R terminal 52
• To headlamp LH terminal 3.

Ground is supplied

• To headlamp RH and LH terminals 5
• Through grounds E9, E15 (all models) and E24 (with MR20DE).

With power and ground supplied, low beam headlamps illuminate.