ACIS Control Circuit [08/2017 - 08/2019]: 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 and ECT / Active Test / Active the VSV for Intake Control.
- Operate the VSV for ACIS.
- Check the VSV air flow when switching the VSV.
OK
Test 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
Result:
NG
See step 4
Result:
OK
See step 2
- CHECK VACUUM HOSES (VACUUM SWITCHING VALVE - INTAKE AIR CONTROL VALVE, INTAKE MANIFOLD)
Result:
NG
REPAIR OR REPLACE VACUUM HOSES
Result:
OK
See step 3
- INSPECT INTAKE MANIFOLD (INTAKE AIR CONTROL VALVE)
- Inspect the intake air control valve (Refer to PROCEDURE - Step 1 ).
Result:
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(Refer to PROBLEM SYMPTOMS TABLE [08/2017 - 08/2018] , or refer to PROBLEM SYMPTOMS TABLE [08/2018 - 08/2019] )
Result:
NG
REPLACE INTAKE MANIFOLD
(Refer to REMOVAL [08/2015 - ] )
- INSPECT VACUUM SWITCHING VALVE
- Inspect the vacuum switching valve (Refer to ON-VEHICLE INSPECTION [08/2015 - ] ).
Result:
NG
REPLACE VACUUM SWITCHING VALVE
(Refer to REMOVAL [08/2015 - ] )
Result:
OK
See step 5
- CHECK HARNESS AND CONNECTOR (VACUUM SWITCHING VALVE - ECM AND INTEGRATION RELAY)
- Remove the EFI NO. 2 fuse from the engine room relay block.
- Check the EFI NO. 2 fuse.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Condition Specified Condition EFI NO. 2 fuse Always Below 1 Ω - Reinstall the EFI NO. 2 fuse.
- Disconnect the D40 intake air control valve connector.
- Disconnect the D56 ECM connector.
- Remove the integration relay from the engine room relay block.
- Disconnect the 1B integration relay connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Condition Specified Condition D40-2 - D56-105 (ACIS) Always Below 1 Ω D40-1 - 2B-4 Always Below 1 Ω D40-2 or D56-105 (ACIS) - Body ground Always 10 kΩ or higher D40-1 or 2B-4 - Body ground Always 10 kΩ or higher
Result:
OK
REPLACE ECM
(Refer to REMOVAL [08/2015 - ] )
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR