REAR FOG LIGHT INDICATOR LIGHT

id091800013900

Purpose

• The rear fog light indicator light notifies the driver that the rear fog light is turned on.

Function

• When the instrument cluster receives a rear fog light signal sent from the rear body control module (RBCM) via CAN communication, it turns the rear fog light indicator light on.

Construction

• The rear fog light indicator light is built into the instrument cluster.

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Operation

1. When all of the following conditions are met, the start stop unit sends (1) the rear fog light signal to the front body control module (FBCM) via CAN communication.

• Ignition switched ON (engine on)

• Headlights or the front fog lights are illuminated

• Fog light switch position: R.FOG

2. When the front body control module (FBCM) receives the rear fog light signal, it sends (2) a rear fog light on request signal to the instrument cluster.

3. The instrument cluster turns the transistor on (3) based on the rear fog light on request signal.

4. When the transistor is turned on, the rear fog light indicator light ground circuit is established and the rear fog light indicator light turns on (4).

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Fail-safe

• Not applicable