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Home >> Infiniti >> 2016 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC P1815: Manual Mode Switch Circuit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC Trouble diagnosis name DTC is detected if... Possible cause
P1815 Manual Mode Switch Circuit TCM monitors manual mode, non manual mode, up or down switch signal, and detects as irregular when impossible input pattern occurs 2 second or more.
  • Harness or connectors

    (These switches circuit is open or shorted.)

  • Manual mode switch