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Home >> Mazda >> 2007 >> 5 Grand Touring, 2.3 L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> On-Board Diagnostic [Automatic Transaxle) >> DTC P0733 >> Notes

DTC P0733: Notes

DTC P0733 [FN4A-EL] DETECTION CONDITION CHART

DTC P0733 Gear 3 incorrect (incorrect gear ratio detected)
DETECTION CONDITION 
  • The PCM compares the revolution ratio of the forward clutch drum to the differential gear case revolution when the following monitoring conditions are met. If the revolution ratio is 0.848 or less  or 2.185 or more  , the PCM determines that there is a malfunction.

    Monitoring conditions: 

    • ATF temperature 20 °C {68 °F} or more 
    • Driving in 3 GR in D or M range
    • Engine running
    • Turbine speed within 225-4,987 RPM 
    • Differential gear case (output) revolution speed 35 RPM or more 
    • None of the following DTCs are present: P0706, P0707, P0708, P0712, P0713, P0715, P0720, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773
  • The PCM compares the revolution ratio of the forward clutch drum to the differential gear case revolution when the following monitoring conditions are met. If the revolution ratio is within 1.404-1.704  , the PCM determines that there is a malfunction.

    Monitoring conditions: 

    • ATF temperature 20 °C {68 °F} or more 
    • Driving in 3 GR in D or M range
    • Torque converter clutch (TCC) not operating
    • Engine running
    • Vehicle speed 19 km/h {12 mph} or more 
    • Turbine speed within 225-4,987 RPM 
    • Differential gear case (output) revolution speed 35 RPM or more 
    • None of the following DTCs are present: P0706, P0707, P0708, P0712, P0713, P0715, P0720, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773

Diagnostic support note: 

  • This is a continuous monitor (CCM).
  • The MIL does not illuminate.
  • The AT warning light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is not available.
  • A PENDING CODE is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • ATF level low
  • Deteriorated ATF
  • Shift solenoids A or C stuck
  • Pressure control solenoid stuck
  • Line pressure low
  • 3-4 clutch slipping
  • Forward clutch slipping
  • Control valve stuck (Bypass, TCC or 3-4 shift valve)
  • Oil pump malfunction
  • PCM malfunction