ACIS Control Circuit [08/2013 - ]: Procedure

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 and ECT / 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

NG → See step   4 

OK: Go to next step 

NG → REPAIR OR REPLACE VACUUM HOSES 

OK: Go to next step 

1. Inspect the intake air control valve. Refer to ON-VEHICLE INSPECTION [08/2013 - ] .

NG → See step   9 

OK → See step   7 

1. Inspect the vacuum switching valve. Refer to ON-VEHICLE INSPECTION [08/2013 - ] .

NG → See step   8 

OK: Go to next step 

1. Remove the EFI NO. 2 fuse from the engine room relay block.
2. Check the EFI NO. 2 fuse.
3. 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

4. Reinstall the EFI NO. 2 fuse.
5. Disconnect the intake air control valve connector.
6. Disconnect the ECM connector.
7. Remove the integration relay from the engine room relay block.
8. Disconnect the integration relay connector.
9. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C38-2 - C53-62 (ACIS)	Always	Below 1 Ω
   C38-1 - 1B-4	Always	Below 1 Ω
   C38-2 or C53-62 (ACIS) - Body ground	Always	10 kΩ or higher
   C38-1 or 1B-4 - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6