900 L4-1985cc 2.0L SOHC Turbo VIN S FI (1984)
Air Door Position Sensor / Switch: Testing and Inspection
Recirculation
1. Check fuse 6 and check that the supply to recirculation switch 143 is live.
2. Press the switch and check that the recirculation valve is activated.
3. Check fuse 9 and check that the supply to main switch 149 in the air distribution control is live.
4. When the control is in position 0 or < - >, the recirculation valve should be activated.