Component Inspection
1.

Check variable swirl control actuator link device operation

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Wait for approx. 16 sec. and check that Main relay turns "OFF".

(3)

Disconnect variable swirl control actuator connector.

(4)

Pressing variable swirl control actuator link with hands, check if shaft stuck, tightness or problem of link device is detected.

1)

Secification : VSCA link device should move smoothly.

(5)

Does variable swirl control actuator move slowly?

YES

a.

Go to "2. Check motor coil resistance" as follows.

NO

a.

Replace stuck or too tight parts of component(intake manifold assy′ or swirl actuator) and go to "Verification of Vehicle Repair".

2.

Check motor coil resistance

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect variable swirl control actuator.

(3)

Measure the resistance between variable swirl control actuator component terminal 1 and terminal 2.

1)

Specification : 15.0 ± 3 Ω (20℃)

(4)

Is the measured resistance within the specification?

YES

a.

Go to "3. Check variable swirl control actuator position sensor resistance" as follows.

NO

a.

Replace variable swirl control actuator and go to "Verification of Vehicle Repair".

3.

Check variable swirl control actuator position sensor resistance

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect variable swirl control actuator.

(3)

Measure the resistance of variable swirl control actuator component terminal 3,4,5 referring "Terminal resistance table" as follows.

1)

Specification : Terminal resistance table

Detecting terminal

Resistance ( KΩ 20℃ )

Characteristic

Component connector shape

Valve fully opend

Valve fully closed

Variable swirl control actuator position sensor

3(power)↔5(ground)

4.47±0.1KΩ

4.47±0.1KΩ

Stable

3(power)↔4(signal)

4.81±0.1KΩ

0.85±0.1KΩ

Resistance drops

4(signal)↔5(ground)

0.75±0.1KΩ

4.71±0.1KΩ

Resistance rises

(4)

Is the measured resistance within the specification?

YES

a.

Go to "4. Check motor operation" as follows.

NO

a.

Replace variable swirl control actuator assy′ and go to "Verification of Vehicle Repair".

4.

Check motor operation

(1)

IG KEY "ON" , ENGINE "ON".

(2)

Keep engine at idle state.

(3)

Monitor the waveform of variable swirl control actuator terminal 1and terminal 2 with two channel oscilloscope.

(4)

Accelerating engine to above 3000RPM, let variable swirl control actuator be opened(operates).

1)

Specification :

(5)

Does variable swirl control actuator operate correctly?

YES

a.

Go to "5. Check variable swirl control actuator position sensor operation" as follows.

NO

a.

Replace variable swirl control actuator assy′ and go to "Verification of Vehicle Repair".

5.

Check variable swirl control actuator position sensor operation

(1)

IG KEY "ON", ENGINE "ON".

(2)

Keep engine at idle state.

(3)

Monitor the waveform of variable swirl control actuator terminal 2 with oscilloscope.

(4)

Turning off engine, monitor the waveform of variable swirl control actuator at the point of operation stop.

1)

Specification :

(5)

Does variable swirl control actuator and position sensor operations are OK?

YES

a.

Go to "Verification of Vehicle Repair".

NO

a.

Replace variable swirl control actuator assy′ and go to "Verification of Vehicle Repair".

Яндекс.Метрика