| 1 |
CHECK OVERALL FUNCTION
- With SDT
- Start engine and warm it up to normal operating temperature.
- Perform "VIAS SOL VALVE" in "Active test" mode with SDT.
- Turn VIAS control solenoid valve "ON" and "OFF", and make sure that power valve actuator rod moves.
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- 2)
Without SDT
- Start engine and warm it up to normal operating temperature.
- Rev engine up to between 2, 200 and 3, 300 RPM and make sure that power valve actuator rod moves.
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OK or NG |
INSPECTION END |
GO TO 2. |
| 2 |
CHECK VACUUM EXISTENCE
With SDT
- Stop engine and disconnect vacuum hose connected to power valve actuator.
- Start engine and let it idle.
- Perform "VIAS SOL VALVE" in "Active test" mode with SDT.
- Turn VIAS control solenoid valve "ON" and "OFF", and check vacuum existence under the following conditions.
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OK or NG |
Repair or replace power valve actuator. |
GO TO 4. |
| 3 |
CHECK VACUUM EXISTENCE
Without SDT
- Stop engine and disconnect vacuum hose connected to power valve actuator.
- Disconnect VIAS control solenoid valve harness connector.
- Start engine and let it idle.
- Apply 12V of direct current between VIAS control solenoid valve terminals 1 and 2.
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- 5. Check vacuum existence under the following conditions.
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OK or NG |
Repair or replace power valve actuator. |
GO TO 4. |
| 4 |
CHECK VACUUM HOSE
- Stop engine.
- Check hoses and tubes between intake manifold and power valve actuator for cracks, clogging, improper connection or disconnection. Refer to
[VARIABLE INDUCTION AIR SYSTEM: VACUUM HOSE DRAWING
].
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OK or NG |
GO TO 5. |
Repair hoses or tubes. |
| 5 |
CHECK VACUUM TANK
Refer to
[VIAS CIRCUIT CHECK ].
OK or NG |
GO TO 6. |
Replace vacuum tank. |
| 6 |
CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect VIAS control solenoid valve harness connector.
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- 3. Turn ignition switch ON.
- 4. Check voltage between terminal 1 and ground with SDT or tester.
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Voltage: Battery voltage
OK or NG |
GO TO 8. |
GO TO 7. |
| 7 |
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E2, F32
- Harness for open or short between VIAS control solenoid valve and IPDM E/R
- Harness for open or short between VIAS control solenoid valve and ECM
|
Repair harness or connectors. |
|
| 8 |
CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check harness continuity between ECM terminal 29 and VIAS control solenoid valve terminal 2. Refer to WIRING DIAGRAM
.
Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG |
GO TO 9. |
Repair open circuit or short to ground or short to power in harness or connectors. |
| 9 |
CHECK VIAS CONTROL SOLENOID VALVE
Refer to
[VIAS CIRCUIT CHECK ].
OK or NG |
GO TO 10. |
Replace VIAS control solenoid valve. |
| 10 |
CHECK INTERMITTENT INCIDENT
Refer to
[SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT
] |
INSPECTION END |
|