Electric Fan Relays (R50)

Electric fan relays

Function
The engine control module controls up to three electric fan speeds (low, medium and high) via one, two or three relay outputs (ON /OFF).

Installation location
The electric fan relays are located in the fuse box in the engine compartment.

Failure
If a relay fails, the cooling blowers do run at the selected speed. This can lead to overheating of the engine.