ACIS Control Circuit: Procedure

1. Connect 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 Techstream.

   OK

   Operating noise can be heard.

NG → See step   2 

OK → See step   7 

1. Inspect the air intake control valve assembly. Refer to ON-VEHICLE INSPECTION - Step 1 .

NG → See step   5 

OK: Go to next step 

1. Disconnect the E50 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 E50 intake air control valve assembly connector.
2. Disconnect the E5 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   6