Fuel Pump Relay Inspection - Miata
WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. 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 "C" and "E". See Fig 1. Continuity should not be present between fuel pump relay 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". If continuity is not as specified, replace fuel pump relay.