Fuel Pump Relay Inspection (Miata)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The fuel pump relay housing is easily broken when relay is removed. Test relay in place and remove relay only for replacement.
Disconnect negative battery cable. Disconnect fuel pump relay 6-pin harness connector. FUEL PUMP RELAY LOCATIONS table. Check continuity between fuel pump relay terminals "A" and "B" and terminals "C" and "E". See Fig 1 . Continuity should be present between fuel pump relay terminals "A" and "B" and not between terminals "C" and "E". Using fused jumper wires, connect positive battery terminal to fuel pump relay terminal "A". Connect negative battery terminal to fuel pump relay terminal "B". Continuity should be present between fuel pump relay terminals "C" and "E". Replace relay if continuity is not as specified.