Operation CHARM: Car repair manuals for everyone.
Home >> Suzuki >> 2007 >> Grand Vitara 4WD V6-2.7L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Monitors, Trips, Drive Cycles and Readiness Codes >> 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

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 occurrence of a misfire. When the number of misfire is counted by the ECM 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, P0305, P0306
Refer to DTC P0300 / P0301 / P0302 / P0303 / P0304 / P0305 / P0306:Misfire Detected. P0300

Misfire Monitor:




Enable Conditions:




Typical Malfunction Thesholds:




Misfire Monitor
pro multis · About Operation CHARM