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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Transmission >> Automatic Transmission (Convertible) >> DTC/Circuit Diagnosis >> DTC P1815: M-Mode Switch >> 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
  • 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(1)
(1) With paddle shifter
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