LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> 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.
  • 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)
scientia non olet · About LEMON Manuals