Source-backed diagnostic reference

P1309 EV diagnostic code

Misfire Detection Monitor Not Enabled

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

FORD: Misfire Detection Monitor Not Enabled Source
KIA: Chassis Acceleration Sensor Signal High Source
LINCOLN: Misfire Detection Monitor Not Enabled Source
MAZDA: Misfire Detection Monitor Source
MERCURY: Misfire Detection Monitor Not Enabled Source
OTHER: Misfire Monitor AICE Chip Fault Source

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