The heater/AC fan has no relay just a switch. The Radiator fan relay is mounted next to the battery. It has 2 plugs and starts based on radiator temp and AC pressure.
you do not have a relay for a fan belt. just change them.
by changing it.
take it to a garage and get if fixed
The cooling fan relay switch can be located on the back of the cooling fan motor. The relay switch should be labeled as such.
use a piece of duct tape and wrap the clutch assembly
It is the Volvo fuel injection relay . It provides the ground path for the fuel injectors. According to info I found, Volvo 1323592-1 is used as a cooling fan relay and as a noise suppression relay.
On top of the radiator under a black plastic shield.
Under the dash on the right side just above the toes of the passenger's right foot.
upper rear right corner of the radiator and/or attached to the radiator hose. If it has an electric cooling fan in front of the radiator, the relay is a black rectangular 4 pin located on the bracket next to the left shock tower. If you are asking about a relay for the blower fan in the car, there is no relay
Check and change the relay
In front of the battery, directly behind the headlights on the passenger side. Follow the wires from the fan switch on the top of the radiator.
above the radiator fan but be careful handling them - they are notorius for the wires coming out of the male plug in