LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2015 >> Q60 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Basic Inspection & Diagnostic Trouble Codes (DTCS)) (Convertible) >> DTC/Circuit Diagnosis >> DTC P1815: M-Mode Switch >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC Trouble diagnosis name DTC is detected if... Possible cause
P1815 Manual Mode Switch Circuit
  • The TCM receives multiple signals from the manual mode switch or receives no signals for continuously 2 seconds or more.
  • Shift up/down signal of paddle shifter continuously remains ON for 60 seconds.*
  • Harness or connectors

    (These switches circuit is open or shorted.)

  • Manual mode select switch (Into A/T shift selector)
  • Manual mode position select switch (Into A/T shift selector)
  • Paddle shifter*

*: With paddle shifter