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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) (1 Of 2) >> Transmission (TCM) >> P0841 Transmission Fluid Pressure Sen/SW A >> DTC Description

DTC Description

DTC DETECTION LOGIC 

DTC CONSULT screen terms(Trouble diagnosis content) DTC detection condition
P0841 FLUID PRESS SEN/SW A(Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance) Diagnosis condition When all of the following conditions are satisfied:
  • TCM power supply voltage: More than 11 V
  • DTC other than the applicable DTC is not detected.
  • Primary pulley speed: 300 rpm or more
  • Secondary pulley speed: 250 rpm or more
  • Target speed for shifting: Less than 0.1 seconds
  • Pulley ratio: 0.5 - 1.0
Signal -
Threshold Primary pulley pressure is outside the specified value
Diagnosis delay time Maintained for 5 seconds

POSSIBLE CAUSE 

FAIL-SAFE 

Not changed from normal driving