Engine compartment fan

[epapp]

If you find the relay (probably next to the other fan relays near drivers left foot), you can just wire a switch in parallel to the ECU signal wire. This way, the ecu will control the compartment fan as normal, and if you want to turn the fan on manually, you can.

[JFP in PA]

Originally Posted by epapp

If you find the relay (probably next to the other fan relays near drivers left foot), you can just wire a switch in parallel to the ECU signal wire. This way, the ecu will control the compartment fan as normal, and if you want to turn the fan on manually, you can.

And the DME will see the fan running when it should not be and still code.....

They did not make this easy.