LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine >> Engine Control System Operation Inspection >> Engine Control System Inspection >> Main Relay Operation Inspection >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Main Relay Operation Inspection: Notes

  1. Verify that the main relay clicks when the ignition is switched ON and then off.
    • If there is no operation sound, inspect the following:
      • Main relay Refer too RELAY INSPECTION .)
      • Wiring harness and connector between battery and main relay terminal A
      • Wiring harness and connector between PCM terminal 2K and main relay terminal E