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Home >> Mazda >> 2007 >> 3 Mazdaspeed, 2.3 M >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting (L3 With TC) >> Engine Control System Operation Inspection >> Main Relay Operation Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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.