8508796

Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damage of component.

Perform checking procedure as follows.

(1)

Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.

(2)

Check connecting condition of ECM and component connector : Check terminal separation, damage of locking device and connecting condition between terminal and wiring.

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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.)

Has a problem been found?

	▶ Repair the trouble causing part and go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection".

Check voltage between power terminal of VGT ACTUATOR' harness connector and chassis ground.

Specification : 12V

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Is the measured value within specification?

	▶ Go to "Ground Circuit Inspection" procedure.
	▶ Repair open between power terminal of 'ELECTRICAL VGT ACTUATOR' and ECM harness connector, and go to "Verification of Vehicle Repair" procedure.

Check resistance between ground terminal of 'ELECTRICAL VGT ACTUATOR' harness connector and chassis ground.

Specification : below 1 Ω

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Is the measured value within specification?

	▶ Go to "Control Circuit Inspection" procedure.
	▶ Repair open or poor connection between ground terminal of 'ELECTRICAL VGT ACTUATOR' and ECM harness connector, and go to "Verification of Vehicle Repair" procedure.

Check voltage between 'PWM input' terminal of 'ELECTRICAL VGT ACTUATOR' harness connector and chassis ground.

Specification : 3.2~3.7 V

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Is the measured value within specification?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ If no voltage is detected, repair short to ground / open between PWM input terminal of 'ELECTRICAL VGT ACTUATOR' harness connector and VGT Control terminal of ECM harness connector, and go to "Verification of Vehicle Repair" procedure.

Check voltage between CAN terminal of 'ELECTRICAL VGT ACTUATOR' harness connector and chassis ground.

Specification : CAN HIgh --> 2.8V, CAN Low --> 2.1V

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Is the measured value within specification?

	▶ Go to "Component Inspection".
	▶ Repair short / open of 'ELECTRICAL VGT ACTUATOR' CAN line.