Radiator fan relay unit (706b), B207 with one radiator fan

Location

Relay unit, radiator fans (706)

Main task

To control the radiator fans.

Type

Relay box containing relays and resistors.

Connection

Pin No.	Signal type	Description
5	+30	Supplied with power from maxi fuse 35 in UEC.
2	ground	Grounded in grounding point G30B.
1, 4 and 7	ground	Grounded by ECM. The pin is grounded differently depending on the current fan stage.

power supply

control