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Hi Beam Lamp

Range: ON/OFF
This data indicates what message is being sent from the BCM to the instrument cluster in order to control the high beam indicator illumination. When the BCM is commanding the high beam indicator to be illuminated, indicating that the high beam headlamps are illuminated, ON is displayed. When the BCM is commanding the high beam indicator not to be illuminated, indicating that the high beam headlamps are not illuminated, OFF is displayed.

The BCM reads the high beam input voltage and divides by the system voltage in order to determine a percentage value. This value is compared against a calibration in order to determine if the high beams are ON. The controller forwards this status determination information to the instrument cluster via the SPI data line. The instrument cluster commands the high beam lamp accordingly.
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