FixVault

DTC Detection Logic

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.)
  • Mode select switch (Into A/T shift selector)
  • Position select switch (Into A/T shift selector)