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Home >> Mazda >> 2012 >> CX-9 Touring, 3.7L Eng VIN V, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System MZI-3.7] >> Engine Control System Operation Inspection >> Fuel Pump Control System Inspection

Fuel Pump Control System Inspection

  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 article.)

    • Wiring harness and connectors (Main relay-fuel pump relay-PCM terminal 1V)
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