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Circuit Opening Relay (Except NAVAJO)

  1. With relay connected, ensure specified voltage is present at relay terminals. See FUEL PUMP RELAY CIRCUIT VOLTAGES TABLE. For locations of circuit opening relay, see CIRCUIT OPENING RELAY LOCATIONS TABLE.
  2. If voltages are okay, remove relay from vehicle. Check relay operation using a 12-volt battery source and perform resistance tests. See Fig 1 .
CIRCUIT OPENING RELAY LOCATIONS

Application Location
B2200, B2600i & 929 Behind Left Kick Panel
Miata Under Dash, Left Of Steering Column
MPV Mounted On ECU, Under Protective Cover On Passenger Side Floor
MX-6 & 626 On Fuse Block
Protege & 323 On Passenger Side Of Firewall, Near ECU
RX7 On Bracket Behind Instrument Panel
FUEL PUMP RELAY CIRCUIT VOLTAGES

Terminal Ignition ON: Volts Ignition START: Volts Idle Volts
Fp 0 12 12
Fc 12 0 0
B 12 12 12
STA 0 12 0
E1 0 0 0
Fig 1: Testing Fuel Pump Relay (Except Navajo)
G117621Courtesy of MAZDA MOTORS CORP.