Fig. 9.80. Purpose of fuel level sensor contacts: A1 - Fuel level signal; A2, B2 - Not used; B1 - «-» fuel level sensor; C1 - «+» fuel pump; C2 - «- «fuel pump.
Make sure that the resistance of the sensor changes as the float moves.
Fuel level | Resistance (+/- 10 Ohm) | Useful fuel volume (+/- 5 liters) |
Full tank | 20 | 70 |
The tank is 3/4 full | 87,5 | 54 |
The tank is half full | 155 | 38 |
The tank is 1/4 full | 222,5 | 23 |
Empty tank | 290 | 7 |
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