Indicator lamp, rear fog light: Notes

Fig 1: Identifying Rear Fog Light Indicator Lamp Communication Flow Line

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Rear Fog Light Indicator Lamp - Circuit Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The indicator lamp for the rear fog light is situated in the upper RH corner and informs the driver when the rear fog light is switched on.

The lamp is powered from the main instrument unit and grounded internally by the main instrument unit. DICE continuously sends bus information REAR FOG LIGHT, unit ON/OFF.

On receiving REAR FOG LIGHT ON, the control module grounds the output of the lamp which then lights up.

If DICE changes the status of the bus information to REAR FOG LIGHT OFF, the lamp goes out.