Toyota Highlander Service Manual: Intake air control system (3MZ-FE)

Ventilation valve Sub-ASSY (3MZ-FE)

REPLACEMENT 1. REMOVE VENTILATION VALVE SUB-ASSY  Disconnect the ventilation hose from the ventilation valve.  Remove the ventilation valve. 2. INSTALL VENTILATION VALVE SUB-ASSY ...

On-vehicle inspection

1. INSPECT INTAKE AIR CONTROL SYSTEM (a) Using a 3-way connector, connect a vacuum gauge to the actuator hose. (b) Connect the hand-held tester to the DLC3. (c) Start the engine. (d) On the h ...

More about Toyota Highlander:

How to proceed with troubleshooting
HINT: Carry out troubleshooting in accordance with the procedures below. Only a basic procedure is shown. Details in the Diagnostic Section show the most effective methods for each circuit. Confirm the troubleshooting procedures for the relevant circuit before beginning troubleshooting. 1 VE ...