P1800

DTC P1800 VIAS CONTROL SOLENOID VALVE




Component Description
The VIAS control solenoid valve (2) cuts the intake manifold vacuum signal for power valve 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 feeds the vacuum signal to the power valve actuator (1).




CONSULT-III Reference Value in Data Monitor Mode




On Board Diagnosis Logic

DTC Confirmation Procedure

NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next step.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 11 V at idle.

1. Start engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

EC-VIAS/V-01:

Wiring Diagram

Step 1-3:

Step 3 (Continued)-5:

Diagnostic Procedure

Component Inspection

VIAS CONTROL SOLENOID VALVE

With CONSULT-III
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform "VIAS S/V-1" in "ACTIVE TEST" mode.




4. Check air passage continuity and operation delay time under the given conditions.




With GST
Check air passage continuity and operation delay time under the given conditions.