P1800
DTC P1800 VIAS CONTROL SOLENOID VALVEComponent Description
The VIAS control solenoid valve (1) cuts the intake manifold vacuum signal for power valve actuator. 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.
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 turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
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 "Diagnosis Procedure".
Wiring Diagram
EC-VIAS/V-01:
Diagnosis Procedure
Step 1-3:
Step 3 (Continued)-5:
Component Inspection
VIAS CONTROL SOLENOID VALVE
With CONSULT-III
1. Reconnect 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 following conditions.
Without CONSULT-III
Check air passage continuity and operation delay time under the following conditions.