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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 P2765: Input Speed Sensor B >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition Possible causes
P2765 INPUT SPEED SENSOR B
(Input/Turbine Speed Sensor B Circuit)
When 1 is satisfied and any of 2, 3 or 4 is satisfied and this state is maintained for 5 seconds:
  1. When all of the following conditions are satisfied:
    • TCM power supply voltage: More than 11 V
    • After range change completion, it spends 2 seconds or more.
  2. When all of the following conditions are satisfied and this state is maintained for 5 seconds:
    • Secondary pulley speed: Less than 149 RPM
    • Primary pulley speed: 1, 000 RPM or more
  3. When all of the following conditions are satisfied and this state is maintained for 0.5 seconds:
    • 10-msec-ago secondary pulley speed: 1000 RPM or more
    • Now secondary pulley speed: 0 RPM
  4. When all of the following conditions are satisfied and this state is maintained for 5 seconds:
    • Range: D or L
    • Engine speed: 450 RPM or more
    • Primary pulley speed: 300 RPM or more
    • Secondary pulley speed: 300 RPM or more
    • Input speed: 300 RPM or more
    • The difference between engine speed and primary pulley speed is 1, 000 RPM or less
    • The difference between engine speed and input speed is 1, 000 RPM or less
    • The difference between primary pulley speed and input speed is 1, 000 RPM or less
    • Lock-up command is being given (except for slip lock-up)
    • DTC other than the applicable DTC is not detected.
    • When any of following items are satisfied:
      1. Primary pulley speed/secondary pulley speed: More than 2.9
      2. Primary pulley speed/secondary pulley speed: Less than 0.3
  • Harness or connector

    (Output speed sensor circuit is open or shorted)

  • Output speed sensor