A/C Wiring Diagram for 1975 CSi – Need Help

[HB Chris]

Early thru `73 has a heater fan bypass relay above the fuse box that was eliminated in 74/75 as it is now part of the revised a/c fan switch.

 

[ScottAndrews]

Early thru `73 has a heater fan bypass relay above the fuse box that was eliminated in 74/75 as it is now part of the revised a/c fan switch.

Is there a diagram for that anywhere?

 

[Dlc]

https://e9coupe.com/forum/media/ac-wiring-diagram-73-75-jpg.4625/

 

[Dlc]

https://e9coupe.com/forum/media/ac-wiring-diagram-73-75-jpg.4625/

and here is the earlier version:

https://e9coupe.com/forum/media/2800cs-ac-wiring-diagram-png.4622/

both available in the media section

 

[ScottAndrews]

and here is the earlier version:

https://e9coupe.com/forum/media/2800cs-ac-wiring-diagram-png.4622/

both available in the media section

Thanks!! Any idea where the relay output goes? Seems like it will come on at some point based on the setting of the blower switch, but what does it power?

 

[Dlc]

Thanks!! Any idea where the relay output goes? Seems like it will come on at some point based on the setting of the blower switch, but what does it power?

this goes to the blower motor. So that parallel use of heater blower and A/C blower fan is prevented.

 

[HB Chris]

The FAQ has many wiring diagrams.