ACIS Control Circuit [09/2015 - ]: Procedure

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1. Disconnect the vacuum hose from port F on the vacuum switching valve (for ACIS).
2. Connect the Techstream to the DLC3.
3. Start the engine.
4. Enter the following menus: Powertrain / Engine / Active Test / Active the VSV for Intake Control.
5. Operate the VSV for ACIS.
6. 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

1. Check the vacuum hose connections.

   OK

   Vacuum hose is connected correctly and is not damaged.

Result: 

NG 

REPAIR OR REPLACE VACUUM HOSES 

Result: 

OK 

See step  3

1. Inspect the intake air control valve (Refer to PROCEDURE - Step 1 ).

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] )

Result: 

NG 

REPLACE INTAKE MANIFOLD 

(Refer to REMOVAL [09/2015 - ] )

1. Inspect the vacuum switching valve assembly (for ACIS) (Refer to PROCEDURE - Step 2 ).

Result: 

NG 

REPLACE VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) 

(Refer to REMOVAL [09/2015 - ] )

Result: 

OK 

See step  5

1. Disconnect the vacuum switching valve assembly (for ACIS) connector.
2. Disconnect the ECM connector.
3. Remove the integration relay from the engine room relay block.
4. Disconnect the integration relay connector.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C38-2 - C53-105 (ACIS)	Always	Below 1 Ω
   C38-1 - 1Q-1	Always	Below 1 Ω
   C38-2 or C53-105 (ACIS) - Body ground	Always	10 kΩ or higher
   C38-1 or 1Q-1 - Body ground	Always	10 kΩ or higher

Result: 

OK 

REPLACE ECM 

(Refer to REMOVAL [09/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR