1. Remove the No. 28 fuel pump fuse.
2. Connect a diode test lamp with an auxiliary wire between the ground and one of the two contacts of the fuel pump fuse.
3. Remove the upper lining near the driver's feet, on the left, while referring to the subsection Removal and installation of a pocket from the driver's side.
4. Turn on the starter. You should hear the fuel pump relay turn on. In addition, the diode control lamp should light up.
5. If the relay does not turn on, check the supply voltage and control.
6. If the diode control lamp does not light up, although the relay turns on, repeat the test on the other contact of the fuse.
7. If the diode indicator lamp does not light up again, check the wire between terminal 23 of the relay, location 4, and the fuel pump fuse. If there is a break, fix it.
8. If the relay power, control and relay wires are OK, replace the fuel pump relay.
Power check
Remove the fuel pump relay from the relay board (relay location no. 4).
Turn on the ignition.
Connect a voltmeter in series:
- between pin 19 (plus ignition switch) and weight;
- between pin 17 (battery plus) and mass.
Required value: 12 V (battery voltage).
Otherwise, check the wire break according to the wiring diagram and repair.
Switch off the ignition.
Control check
1. Connect a diode test lamp with an auxiliary wire between pin 16 (control ground from the engine control unit) and pin 17 (plus) relay socket.
2. Turn on the starter. In this case, the LED should light up. Otherwise, find a broken wire to the injection control device and repair it or replace the control device (service station work).
Warning: Diode test lamps have a low current draw. If the starter is not turned on, they have a faint glow and do not go out completely.
3. Insert the fuel pump fuse.
4. Install the pocket in the area of the legs, while referring to the subsection Removal and installation of a pocket from the driver's side.
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