Flowchart No. 9: Intake Air Mode Does Not Change

System Operation
The air intake actuator is powered by the wiper fuse. When fresh air is desired, the heater control unit grounds the air intake actuator through the (LG/R) and (G/L) terminal wires. The actuator stops running when the position switch reaches the fresh position, because the actuator's ground circuit is interrupted. When recirculated air is desired, the motor is grounded through the (L) terminal wire.

Step 1
1. Disconnect the air intake actuator connector.








2. Connect battery positive voltage to the following terminals of the air intake actuator and check the actuator operation.
3. If correct, go to Step 2.
4. If not as specified, replace the air intake actuator.


Step 2
1. Disconnect the air intake actuator connector and heater control unit connectors.








2. Check for continuity at the following wires between the connectors.