When the fuel pump must be running to test the injection system, but the engine should not be running, you need to pull out the relay and bridge contacts 30 and 87 (diesel: terminal 87) with a short wire with a cross section of at least 18 mm2.
Caution: To test the fuel pump relay, the battery must be fully charged.
Check injection system fuse. The location of the fuses is shown on the cover of the fuse box.
Pull out the fuel pump relay.
Connect slots 30 and 87 (for diesel engine socket 87) short wire without damaging them. If the pump runs, replace the fuel pump relay. If the pump does not work, check the wires going to the relay and to the fuel pump and, if necessary, replace the wires.
Check relay/fuel pump.