Inspection Procedure
WARNING: This page is about a different variant/trim than selected.
- PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR INTAKE CONTROL)
- Connect the Techstream to the DLC3.
- Start the engine and turn the tester on.
- Select the following menu items: Powertrain/Engine and ECT/Active Test/Active the VSV for Intake Control.
- Check the operation of the VSV when the intake air control is operated by the tester.
OK:
Operational noise can be heard.
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
- CHECK INTAKE AIR CONTROL VALVE (OPERATION)
- Disconnect the intake air control valve connector.
- Apply battery voltage between the terminals of the air intake valve connector.
- Check the air intake valve operation.
OK:
Operational noise can be heard.
- Reconnect the intake air control valve connector.
NG: REPLACE INTAKE AIR SURGE TANK (See INTAKE MANIFOLD )
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Go to next step
- INSPECT TERMINAL VOLTAGE (INTAKE AIR CONTROL VALVE CONNECTOR)
- Disconnect the intake air control valve connection.
- Turn the ignition switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Switch Condition Specified Condition 2 - Body ground Ignition switch on (IG) 9 to 14 V - Reconnect the intake air control valve connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 3 - INTAKE AIR CONTROL VALVE)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE - ECM)
- Disconnect the intake air control valve connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance:
Check for open
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition B28-1 - B1-33 (ACIS) Always Below 1 Ω Check for short
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition B28-1 or B1-33 (ACIS) - Body ground Always 10 kΩ or higher - Reconnect the intake air control valve connector.
- Reconnect the ECM connector.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR ACIS - ECM)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: REPLACE ECM (See REMOVAL )