Inspection Procedure
NOTE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE VSV FOR ACIS)
- Disconnect the vacuum hose from port F on the vacuum switching valve (for ACIS).
- Connect the Techstream to the DLC3.
- Start the engine.
- Enter the following menus: Powertrain/Engine/Active Test/Active the VSV for Intake Control.
- Operate the VSV for ACIS.
- Check the VSV air flow when switching the VSV on and off.
OK
SPECIFIED CONDITION CHARTTest Condition Specified Condition VSV is ON Air from port E flows out through port F VSV is OFF Air from port E flows out through air filter NG: Go to step 4
OK: Go to next step
- CHECK VACUUM HOSES (VACUUM SWITCHING VALVE - INTAKE AIR CONTROL VALVE, INTAKE MANIFOLD)
- Check the vacuum hoses (See ON-VEHICLE INSPECTION
).
NG: REPAIR OR REPLACE VACUUM HOSES
OK: Go to next step
- Check the vacuum hoses (See ON-VEHICLE INSPECTION
).
- INSPECT INTAKE MANIFOLD (INTAKE AIR CONTROL VALVE)
- Inspect the intake air control valve (See INSPECTION
).
NG: REPLACE INTAKE MANIFOLD (See REMOVAL )
OK: PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
- Inspect the intake air control valve (See INSPECTION
).
- INSPECT VACUUM SWITCHING VALVE (VSV FOR ACIS)
- Inspect the VSV for ACIS (See INSPECTION
).
NG: REPLACE VACUUM SWITCHING VALVE (See REMOVAL )
OK: Go to next step
- Inspect the VSV for ACIS (See INSPECTION
).
- CHECK HARNESS AND CONNECTOR (VSV FOR ACIS VOLTAGE)
- Disconnect the VSV for ACIS connector.
- Turn the ignition switch to ON.
- Measure the voltage according to the value (s) in the table below.
Standard Voltage
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Switch Condition Specified Condition B58-2 - Body ground Ignition switch ON 11 to 14 V - Reconnect the VSV for ACIS connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 3 FUSE - VSV FOR ACIS)
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (VSV FOR ACIS - ECM)
- Disconnect the VSV for ACIS connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance (Check for Open)
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition B58-1 - B51-27 (ACIS) Always Below 1 Ω Standard Resistance (Check for Short)
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition B58-1 or B51-27 (ACIS) - Body ground Always 10 kΩ or higher - Reconnect the VSV for ACIS connector.
- Reconnect the ECM connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE ECM (See REMOVAL )