Fuel Gauge

Indicator Warning Lamps: Fuel Gauge:

WIRING DIAGRAM

Fuel Gauge: Component Location:

COMPONENT LOCATION VIEW

Fuel Gauge: Component ID:

COMPONENT ID
16 Rheostat, instrument lighting, on dashboard between the steering wheel and driver's door.
46 Fuel level sensor, in fuel tank under the luggage compartment floor.
In The Main Instrument Display Panel
18 Instrument lighting
47a Fuel gauge
47b Indicator lamp for low fuel level
47c Coolant temperature gauge
47i Direction indicator repeater lamp, right-hand
110 Tachometer (rev counter)
210 EDU trip computer

4-Pin Connector
H4-4 Beside the fuel pump under the luggage compartment floor.

Grounding Points
G8 Grounding point, dashboard, by the left-hand front loudspeaker socket.

DESCRIPTION OF OPERATION
Fuel Level Sensor 46
The fuel level sensor is integrated into the fuel pump.

Fuel Gauge 47a
When the ignition switch is in the Drive position, 12 V is supplied to pin 2 of the temperature gauge from pin 22 of EDU 210. Fuel level sensor 46 is connected to the EDU unit which performs a calculation and sends a 1-9 V signal to pin 1 of the tank/temperature unit.

1 V = tank empty
9 V = tank full

Temperature gauge 47c, fuel gauge 47a, instrument lighting lamps 18 and indicator lamp 47i are connected to ground via pin 5.

Indicator Lamp 47b
Low fuel warning lamp 47b is controlled by EDU 210. When the fuel level in the tank drops below 10 litres, the lamp is grounded via pin 3.

FAULT DIAGNOSIS HINTS
Fuel Gauge
The fuel gauge is activated when the ignition switch is turned to the Drive position.
1. Check that current is supplied to pin 2.
2. Check that current is supplied to pin 22 of EDU 210.
3. Check that 1-9 V is applied to pin 1.
4. Check the connectors, wiring harness and ground connections.

Low Fuel Warning Lamp
The low fuel warning lamp lights up for 4 seconds when the ignition switch is turned to the Drive position if there is more than 10 litres of fuel in the tank.