REAR FOG LIGHT

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Purpose

• The vehicle's presence is signaled to vehicles at the rear by the illumination of the rear fog light during poor weather conditions such as dense fog.

Function

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

Construction

4SD

• The rear fog light is assembled to the rear bumper.

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5HB

• The rear fog light is assembled to the liftgate light.

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Operation

1. When all of the following conditions are met, the start stop unit detects (1) the rear fog light signal.

• Ignition switched ON (engine on)

• Headlights or the front fog lights are illuminated

• Fog light switch position: R.FOG

2. The start stop unit sends (2) the rear fog light signal to the front body control module (FBCM) via CAN communication.

3. When the front body control module (FBCM) receives the rear fog light signal, it sends (3) a rear fog light on request signal to the rear body control module (RBCM) via the instrument cluster.

4. When the rear body control module (RBCM) receives the rear fog light on request signal, it turns the rear fog light on (4).

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Fail-safe

• Not applicable