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DTC Detection Logic

DTC DETECTION LOGIC

DTC Item (CONSULT-III screen terms) A/T CHECK indicator lamp judgment flicker Diagnostic item is detected when... Possible cause
P0744 A/T TCC S/V FNCTN 3rd
  • A/T cannot perform lock-up even if electrical circuit is good.
  • TCM detects as irregular by comparing difference value with slip rotation.
  • Harness or connectors (Sensor circuit is open or shorted.)
  • Torque converter clutch solenoid valve
  • Hydraulic control circuit
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