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Home >> Mazda >> 2001 >> B2500 SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Relays & Solenoids >> Relays >> Fuel Pump Relay
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Fuel Pump Relay

  1. Turn ignition off. On fuel pump relays that terminals are numbered 1-5, measure resistance between relay terminal No. 1 and all other relay terminals. Resistance should be 40-120 ohms between terminals No. 1 and 2 and greater than 10,000 ohms between terminal No. 1 and other relay terminals.
  2. On fuel pump relays that terminals are numbered 30, 85, 86, 87 and 87A, measure resistance between relay terminal No. 85 and all other relay terminals. Resistance should be 40-120 ohms between terminals No. 85 and 86 and greater than 10,000 ohms between terminal No. 85 and other relay terminals. On both relays, if resistance is not as specified, replace relay. If resistance is okay, see TEST KA under SYSTEM TEST in SELF-DIAGNOSTICS - B2300, B2500, B3000, B4000 & TRIBUTE article for additional fuel pump circuit testing procedures.
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