Misfire Monitor

OBD System Description - Misfire Monitor

System Description / Monitoring Procedure
ECM measure the angle 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 occurrence of a misfire. When the number of misfire is counted by ECM beyond the DTC detecting condition, it determine the cylinder where the misfire occurred and output it as DTC.

DTC Description / Detecting Condition / Confirmation Procedure

P0300 / P0301 / P0302 / P0303 / P0304 / P0305 / P0306
Refer to DTC P0300 / P0301 / P0302 / P0303 / P0304 / P0305 / P0306:N32A. P0300

Misfire Monitor

Operation






Enable conditions






Typical malfunction thresholds






Mode $06 Data

Mode $06 Data: