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Fuel Pump Relay

  1. Locate fuel pump relay. See FUEL PUMP RELAY LOCATIONS  table under FUEL PRESSURE RELEASE. Using jumper wires, connect battery voltage to fuel pump relay terminal "A" (positive) and terminal "B" (negative). See Fig 2 or Fig 1 .
  2. On Miata, MPV and Protege, check continuity between fuel pump relay terminals "C" and "E". On Millenia and 626, check continuity between fuel pump relay terminals "C" and "D". On all models, with battery voltage connected, continuity should exist. With battery voltage disconnected, continuity should not exist. If continuity is not as specified, replace fuel pump relay.
Fig 1: Testing Fuel Pump Relay (Miata, MPV & Protege)
G95G31423Courtesy of MAZDA MOTORS CORP.
Fig 2: Testing Fuel Pump Relay (Millenia & 626)
G95H31424Courtesy of MAZDA MOTORS CORP.
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