LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0850: PNP Switch >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition Possible cause
P0850 P-N POS SW/CIRCUIT
(Park/neutral position switch)
The signal of the park/neutral position (PNP) signal does not change during driving after the engine is started.
  • Harness or connectors

    [The park/neutral position (PNP) signal circuit is open or shorted.]

  • TCM