High Beam Operation/Flash-To-Pass Operation
With the lighting switch in the 2ND position and the combination switch (high beam and turn signal switch) placed in HIGH position, the BCM receives input requesting the headlamp high beams to illuminate. The flash to pass feature can be used any time and also sends a signal to the BCM. This input is communicated to the IPDM E/R via the CAN communication lines. The CPU of the combination meter controls the ON/OFF status off the HIGH BEAM indicator.
The CPU of the IPDM E/R controls the headlamp high relay coil which supplies power to the LH high beam headlamp and the daytime running light relay 2 which then supplies power to the RH high beam headlamp.
The combination meter receives a high beam request signal (ON) via the CAN communication lines and turns the high beam indicator lamp ON.