3.
Check motor operation by fuel pump connector (A) connecting power (No.4) and ground (No.5).
Pin No. | Description |
1 | Fuel sender signal |
2 | Fuel sender ground |
3 | Fuel sender (+) [+5V] |
4 | Fuel pump motor (+) [+12V] |
5 | Fuel pump motor (-) |
Turn the ignition switch OFF, and then remove battery (-) cable.
Remove the fuel pump assembly.
Check motor operation by fuel pump connector (A) connecting power (No.4) and ground (No.5).
Pin No. | Description |
1 | Fuel sender signal |
2 | Fuel sender ground |
3 | Fuel sender (+) [+5V] |
4 | Fuel pump motor (+) [+12V] |
5 | Fuel pump motor (-) |
Turn the ignition switch OFF, and then remove battery (-) cable.
Remove the fuel pump assembly.
Supply 4.5 voltage (1.5V battery 3EA) to the terminals 2 and 3.
Check voltage of the fuel sender normally.
Pin No. | Description |
1 | Fuel sender signal |
2 | Fuel sender ground |
3 | Fuel sender (+) [+5V] |
4 | Fuel pump motor (+) [+12V] |
5 | Fuel pump motor (-) |
Also check that the resistance changes smoothly when the float is moved from "E" to "F".
Position | Output Votage [Vref=5V] | Capacity (ℓ) |
E | 0.20 ~ 0.40 | 4.8 |
1/2 | 2.37 ~ 2.67 | 26.5 |
F | 4.40 ~ 4.60 | 49.7 |
Position | Output Votage [Vref=4.5V] | Capacity (ℓ) |
E | 0.18 ~ 0.36 | 4.3 |
1/2 | 2.13 ~ 2.40 | 23.4 |
F | 3.96 ~ 4.14 | 43.7 |
