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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5
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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

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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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