OBD System Description - Misfire Monitor

OBD System Description - Misfire Monitor

System Description / Monitoring Procedure

ECM measures the angle speed of the crankshaft based on the pulse signal from the CKP sensor and CMP sensor for each cylinder. If it detects a large change in the angle speed of the crankshaft, it concludes that a misfire has occurred. When the number of cylinders that misfire is counted based on DTC detecting conditions, it determines the cylinder where the misfire occurred and outputs it as DTC.

DTC Description / Detecting Condition / Confirmation Procedure

P0300, P0301, P0302, P0303, P0304

Refer to P0300 DTC P0300 / P0301 / P0302 / P0303 / P0304.

Misfire Monitor

Operation





Enabled conditions





Typical malfunction thresholds






MODE $06 Data