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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (On-Board Diagnostic - Pcm (VIN A) (1 Of 4)) >> OBD Drive Mode (PYUL) >> Mode 03 (Variable Valve Timing, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

Mode 03 (Variable Valve Timing, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)

WARNING: This page is about a different variant/trim than selected.
  1. Start the engine and warm it up completely.
  2. Verify all accessory loads (A/C, headlights, blower fan, rear window defogger) are off.
  3. Switch to SPORT mode and verify that the engine starts.
  4. Drive the vehicle as shown in the graph below.
    G16689040Courtesy of MAZDA MOTORS CORP.
    COMPONENT OPERATIONS

    Component No. Refer to
    1 Vehicle speed
    2 90 km/h {56 mph} or more in D position
    3 Decelerate by engine braking only while driving with engine speed 1, 750-1, 850 RPM. (lock in 4th gear)
    4 Approx. 30 s
    5 30 times
    6 Accelerate to 90 km/h {55 mph} within 20 s.
    7 Accelerate to 1, 750-1, 850 RPM within 15 s in 4th gear.
    8 Approx. 9 s
    9 0
    10 Start engine
    11 5 min or more
    12 1 min
    13 Stop engine
    14 Time
  5. Verify that no DTCs are displayed.