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Home >> Mazda >> 2024 >> CX-30 Preferred >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Mechanical System (VIN Y)) >> Oil Control Valve (OCV) Inspection (VIN Y) >> Spool Valve Operation Inspection

Spool Valve Operation Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION (VIN Y) .)
  3. Verify that the spool valve in the OCV is in the maximum valve timing advance position as indicated in the figure.
    G16379682Courtesy of MAZDA MOTORS CORP.
  4. Verify that the battery is fully charged. (See BATTERY INSPECTION .)
    NOTE:
    • When applying battery positive voltage between the OCV terminals, the connection can be either of the following:
      • Positive battery cable to terminal A, negative battery cable to terminal B
      • Positive battery cable to terminal B, negative battery cable to terminal A
        G16379683Courtesy of MAZDA MOTORS CORP.
  5. Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing retard position.
    G16379684Courtesy of MAZDA MOTORS CORP.
  6. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing advance position.
  7. Install the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION (VIN Y) .)
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