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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (Re0F10J) (Diagnostic Trouble Codes (DTCS), Symptom Diagnosis And R & I) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC P0746: Pressure Control Solenoid A >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition Possible causes
P0746 PC SOLENOID A
(Pressure Control Solenoid A Performance/Stuck Off)
The detecting condition A or detection condition B is detected twice or more (1 second or more later after detection of the first) in the same DC under the following diagnosis conditions:
  • Diagnosis conditions
    • Engine speed: More than 600 RPM
    • Primary pulley speed: More than 450 RPM
    • Idle is not being detected.
    • Acceleration/deceleration speed: - 0.49 m/s2 (- 0.05 G) or more
    • The primary pulley speed experienced 300 RPM or more and the secondary pulley speed experienced 250 RPM or more at least once.
    • Secondary pulley speed: More than 150 RPM
    • TCM power supply voltage: More than 11 V
  • Detection condition A
    • Status with the shifting ratio of the primary pulley speed/secondary pulley ratio exceeding 2.825 is 0.2 sec or more continuously.
  • Detection condition B
    • Status with the shifting ratio of the primary pulley speed/secondary pulley ratio exceeding 3.625 is 0.1 sec or more continuously.
  • Line pressure solenoid valve
  • Control valve assembly
NOTE:

DC stands for "DRIVING CYCLE" and indicates a series of driving cycle of "Ignition switch OFF → ON → driving → OFF".