Fuel Reserve Indicator Lamp

Fuel reserve indicator lamp

Schematic:

When approx. 10 litres of fuel are left, the lamp comes on to indicate the low fuel level. The lamp is powered from the main instrument unit and grounded internally by the main instrument unit.

The main instrument unit lights this lamp for three seconds when the ignition is switched on.

Diagnostics
An open circuit/short circuit sets diagnostic trouble code B1720. The gauge needle indicates 0 litres and the fuel reserve indicator lamp lights up.