ACIS Control Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Intake Control.
4. Check if operating noise can be heard when operating the intake control valve using the Techstream.

   OK

   Operating noise can be heard.

NG → See step   2 

OK → See step   5 

1. Disconnect the intake air control valve assembly connector.
   Fig 1: Intake Air Control Valve Assembly Connector

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2. Apply battery voltage between the terminals of the air intake valve connector.
   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Intake Air Control Valve Assembly)

3. Check air intake valve operation.

   OK

   Operating noise can be heard.

4. Reconnect the intake air control valve assembly.

NG → See step   6 

OK: Go to next step 

1. Disconnect the intake air control valve assembly connector.
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   E50-1 - Body ground	Engine switch on(IG)	11 to 14 V

4. Reconnect the intake air control valve assembly.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI MAIN RELAY - INTAKE AIR CONTROL VALVE ASSEMBLY) 

OK: Go to next step 

1. Disconnect the intake air control valve assembly connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   E50-2 - E5-3 (ACIS)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   E50-2 or E5-3 (ACIS) - Body ground	Always	10 kΩ or higher

4. Reconnect the intake air control valve assembly connector.
5. Reconnect the ECM connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   7