Operation CHARM: Car repair manuals for everyone.
Home >> Suzuki >> 2003 >> Aerio L4-2.0L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Monitors, Trips, Drive Cycles and Readiness Codes >> OBD System Description - Misfire Monitor
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

OBD System Description - Misfire Monitor






OBD System Description - Misfire Monitor

System Description / Monitoring Procedure

ECM (PCM) 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 occurrence of a misfire. When the number of misfire is counted by the ECM (PCM) beyond the DTC detecting condition, 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: Random / Cylinder 1 / Cylinder 2 / Cylinder 3 / Cylinder 4 Misfire Detected.

Misfire Monitor

Operation





Enable condition





Typical malfunction thresholds





pro multis · About Operation CHARM