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Home >> Mazda >> 2025 >> CX-5 S Select >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine (VIN L) >> Engine Control System Operation Inspection >> Fuel Pump (Low-pressure Side) Control System Inspection >> If simulation function of M-MDS is not used

If simulation function of M-MDS is not used

  1. Crank the engine and verify that the fuel pump relay operation sound is heard.
  2. If the operation sound is not heard, inspect the following:
    • Fuel pump relay (See RELAY INSPECTION .)
    • Wiring harness and connectors (IG1 relay-Fuel pump relay-PCM terminal 2AW)
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