Description
The VIAS control solenoid valve 1 cuts the intake manifold vacuum signal for power valve 1 control. It responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum signal from the intake manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and sends the vacuum signal to the power valve actuator 1.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm battery voltage is more than 11 V at idle.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK VIAS CONTROL SOLENOID VALVE 1 POWER SUPPLY CIRCUIT
2.CHECK VIAS CONTROL SOLENOID VALVE 1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
3.CHECK VIAS CONTROL SOLENOID VALVE 1
4.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK VIAS CONTROL SOLENOID VALVE 1
With CONSULT
Without CONSULT
Removal and installation
BATTERY
Exploded View
Upper ECM bracket
Battery frame
Battery rods
Battery
Battery tray liner
Battery tray
Removal and Installation (Battery)
REMOVAL
Loosen battery cable assembly nuts, and disconnect both battery
terminals.
CAUTION:
When disconnecting, discon ...
Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION-I
Turn ignition switch OFF.
Check ground connection E9. Refer to Ground Inspection
2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
Disconnect ECM harness connector.
Check the continuity between ECM harness connector and ground.
Also che ...
Inspection and adjustment
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
BEFORE REPLACEMENT
When replacing AV control unit, save current vehicle specification with
CONSULT configuration before
replacement.
AFTER REPLACEMENT
CAUTION:
When replacing AV con ...