Blower Relay Switch Wiring Diagram. From pin 30 to pin 87 if you look on the side of the relay there is a diagram for all other speeds the current flows from the switch through the resistor through pin 87a to pin 30 on to. Fresh air blower switch engine control unit airbag warning lamp fresh air controls light bulb fresh air blower with overheating fuse series resistor 2 pin connector on fresh air blower switch 4 pin connector on series resistor 6 pin connector on.
Fresh air blower switch engine control unit airbag warning lamp fresh air controls light bulb fresh air blower with overheating fuse series resistor 2 pin connector on fresh air blower switch 4 pin connector on series resistor 6 pin connector on. They dont want the ac running unless the fan is on so it starts at the fan switch. Suggested electric fan wiring diagrams converting a 12 volt switch into a ground switch these diagrams show the use of relays onoff sensors onoff switches and onoff fan controllers.
These relays power the blower fan as well as some other accessories.
12v switch wiring. Air inlet flap control. Heater blower motor if separated. Connect the blue lead marked 13 to the correct.