Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damge of component.
Perform checking procedure as follows.
Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.
Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking device and connecting condition between terminal and wiring.
Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for checking connecting condition. ( after checking, reconnect the pin at correct position. )
Is the problem found?
YES
Repair the trouble causing part and go to "Verification of Vehicle Repair".
NO
Go to "Control Circuit Inspection".
Check control circuit voltage
IG KEY "OFF", ENGINE "OFF".
Disconnect variable swirl control actuator connector.
IG KEY "ON"
Measure the voltage of variable swirl control actuator connector terminal 1.
Measure the voltage of variable swirl control actuator connector terminal 2.
Specification : 0.0V~0.1V
Is the measured voltage within the specification?
YES
Check "2. Check open in motor circuit" as follows.
NO
Repair short to battery in variable swirl control actuator motor circuit and go to "Verification of Vehicle Repair".
Check open in motor circuit
IG KEY "OFF", ENGINE "OFF".
Disconnect variable swirl control actuator connector and ECM connector.
Check continuity between variable swirl control actuator connector terminal 1 and ECM connecor (CDD-A) terminal 60.
Check continuity between variable swirl control actuator connector terminal 2 and ECM connecor (CDD-A) terminal 30.
Specification : Continuity (below 1.0Ω )
Is the measured resistance within the specification?
YES
Go to "Component Inspection".
NO
Repair open in variable swirl control actuator motor circuit and go to "Verification of Vehicle Repair".