Component Inspection
■ Check ACV position sensor resistance
1.

IG key OFF.

2.

Disconnect ACV connector.

3.

Check resistance between power and ground terminal of ACV connector. (ACV component side)

Specification :
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4.

Is the measured value within specification?

▶ Go to "VSA position sensor waveform inspection" procedure.

▶ Repair ACV, and go to "Verification of Vehicle Repair" procedure.

■ VSA position sensor waveform inspection
5.

Warm the engine up. (engine temperature over 70℃)

6.

Connect one probe of oscilloscope to 'signal' terminal of ACV connector. (ACV component side)

7.

IG key "OFF" when the engine coolant temperature is above 70℃.

8.

Monitor the signal waveform of learning right after IG key "OFF".

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Fig.1) Signal at idle

Fig.2) Signal when Key "ON" → "OFF"

※ Opne and close repeats 3times for ACV position learning when IG key OFF and engine coolant temperature is over 70℃.

9.

Is the measured value within specification?

▶ Go to "Verification of Vehicle Repair" procedure.

▶ Replaces ACV, and go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика