|
1.Disconnect the vacuum
hoses from the variable geometry control solenoid
valve.
| note |
When disconnecting the vacuum
hose, always make sure that it can be
reconnected at its
original position.
|
2.Disconnect the harness connector.
|
|
3.Connect a hand vacuum pump
to nipple (A) or (B) of the variable geometry control
solenoid
valve.
4.As described in the chart below, check
airtightness by applying a vacuum with voltage
applied directly from the battery to the variable geometry
control solenoid valve, and without
applying voltage.
|
|
Battery positive
voltage
|
Nipple (A)
condition
|
Nipple (B)
condition
|
Normal
condition
|
Applied
|
Connect a hand vacuum
pump.
|
Open
|
Vacuum leaks
|
Closed
|
Vacuum
maintained
|
Not applied
|
Open
|
Vacuum
maintained
|
Closed
|
Connect a hand vacuum
pump.
|
Vacuum leaks
|
|
|
|
5.Measure the resistance
between the terminals of the variable geometry control
solenoid
valve.
Standard value: 10 - 14 Ω
(at 20°C)
6.Replace the solenoid if
airtightness or resistance is out of specification.
|
|
1.Disconnect the vacuum
hoses from the variable geometry control solenoid
valve.
| note |
When disconnecting the vacuum
hose, always make sure that it can be
reconnected at its
original position.
|
2.Disconnect the harness connector.
|
|
3.Connect a hand vacuum pump
to nipple (A) or (B) of the variable geometry control
solenoid
valve.
4.As described in the chart below, check
airtightness by applying a vacuum with voltage
applied directly from the battery to the variable geometry
control solenoid valve, and without
applying voltage.
|
|
Battery positive
voltage
|
Nipple (A)
condition
|
Nipple (B)
condition
|
Normal
condition
|
Applied
|
Connect a hand vacuum
pump.
|
Open
|
Vacuum leaks
|
Closed
|
Vacuum
maintained
|
Not applied
|
Open
|
Vacuum
maintained
|
Closed
|
Connect a hand vacuum
pump.
|
Vacuum leaks
|
|
|
|
5.Measure the resistance
between the terminals of the variable geometry control
solenoid
valve.
Standard value: 10 - 14 Ω
(at 20°C)
6.Replace the solenoid if
airtightness or resistance is out of specification.
|