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Fuel Pump Control System Inspection

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Crank the engine and verify that fuel pump relay operation sound is heard.
  2. If operation sound is not heard, inspect the following:
    • Fuel pump relay. (See RELAY INSPECTION .)
    • Wiring harness and connectors (Main relay - fuel pump relay - PCM terminal 1AR (with immobilizer system), 1AQ (without immobilizer system).
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