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Home >> Mazda >> 2007 >> CX-7 Sport, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting (Engine - L3 With TC) >> Engine Control System Operation Inspection >> Main Relay Operation Inspection

Main Relay Operation Inspection

  1. Verify that the main relay clicks when the ignition switch is turned to ON position and then off.
    • If there is no operation sound, inspect the following:
      • Main relay (See RELAY INSPECTION ).
      • Wiring harness and connector between ignition switch and main relay terminal A.
      • Wiring harness and connector between PCM terminal 1 AT and main relay terminal B.
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