2016 – MX-5 – Body and Accessories

HEADLIGHT HIGH-BEAM INDICATOR LIGHT

Purpose

• The headlight high-beam indicator light notifies the driver that the headlights HI are turned on.

Function

• When the instrument cluster receives the headlight HI signal sent from the BCM via CAN communication, it turns the headlight high-beam indicator light on.

Construction

• The headlight high-beam indicator light is built into the instrument cluster.

  

Operation

• When the light switch is moved to any of the following positions, the start stop unit sends (1) a headlight HI signal to the BCM via CAN communication.

• Light switch at HEAD position and dimmer switch at HI position

• Dimmer switch at FLASH-TO-PASS position

• When the BCM receives the headlight HI signal with the ignition switched ON (engine off or on), it sends (2) a headlight HI signal to the instrument cluster.

• The instrument cluster turns the transistor on (3) based on the headlight HI signal.

• When the transistor turns on, a ground circuit with the headlight high-beam indicator light is established, and the headlight high-beam indicator light turns on (4).

Fail-safe

• Not applicable

< Previous Next >