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Home >> Infiniti >> 2015 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Trouble Codes (DTCS) P1551-P219B, Symptom Tests And R & I) >> DTC/Circuit Diagnosis >> DTC P1715: Input Speed Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC P1715 is displayed with DTC UXXXX, perform the trouble diagnosis for DTC UXXXX. 
  • If DTC P1715 is displayed with DTC P0335, perform the trouble diagnosis for DTC P0335. Refer to  DTC LOGIC  . 
  • If DTC P1715 is displayed with DTC P0340, perform the trouble diagnosis for DTC P0340. Refer to  DTC LOGIC  . 
  • If DTC P1715 is displayed with DTC P0605, perform the trouble diagnosis for DTC P0605. Refer to  DTC LOGIC  . 
  • If DTC P1715 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607. Refer to  DTC LOGIC  . 
DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition Possible cause
P1715 IN PULY SPEED
[Input speed sensor (TCM output)]
Input speed sensor signal is different from the theoretical value calculated by ECM from output speed sensor signal and engine rpm signal.
  • Harness or connectors

    (The CAN communication line is open or shorted)

    (Input speed sensor circuit is open or shorted)

  • TCM