Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSMAZDA1990626 LX, 4D HATCHBACK, 2.2 1, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGFUEL PRESSURE (FUEL INJECTION)CIRCUIT OPENING RELAY
1990 Mazda 626 LX, 4D Hatchback, 2.2 1, Automatic
Circuit Opening Relay
1990 Mazda 626 LX, 4D Hatchback, 2.2 1, AutomaticSECTION Circuit Opening Relay
- 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.CIRCUIT OPENING RELAY LOCATIONS
Application Location B2600i & 929 Behind Left Kick Panel Miata Under Dash, Left Of Steering Column MPV Mounted On ECU, Under Protective Cover On Passenger Side's Floor MX-6 & 626 On Fuse Block Protege & 323 On Passenger Side's Wall, Near ECU RX7 On Bracket Behind Instrument Panel FUEL PUMP RELAY CIRCUIT VOLTAGESTerminal 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 - If voltages are okay, remove relay from vehicle. Check relay operation using a 12-volt battery source and perform resistance tests. See Fig 1 .
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.