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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (1 Of 6) >> DTC P0015-00: Hydraulic Variable Valve Timing Control System >> Repeatability Verification Procedure

Repeatability Verification Procedure

  1. Warm up the engine to allow the engine coolant temperature to reach 80°C {176°F} or more.
  2. Shift to D position and rapidly accelerate the vehicle to 50 km/h {31 mph}(to operate hydraulic variable valve timing control).
  3. Decelerate to idling.
  4. Shift to D position and rapidly accelerate the vehicle to 50 km/h {31 mph}again.
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