Blower has stopped working, all fuses are good, blower speed indicators illuminate on control panel, blower motor runs when given 12 vdc. Rear blower motor works perfectly. Can anyone please tell me where the blower motor relay is located? I have found the resistor but not the relay if there is one.
Thank You.

 

The relay for the blower, if it has one, should be shown in your owner's manual in the road emergencies/ specifications section.

If you really want to get to the bottom of the problem open the dash and start checking at the blower switch. With the key on it should have power coming to one of the terminals and as different speeds are selected different wires coming off the switch should get power(12 volts) available to them. If you have no power to the switch, make sure there is not an additional fuse panel under the hood in the engine compartment.

 

The search continues. I found no additional fuses anywhere that may be related. Short of tearing apart the actual dash panel to check out the switch I'm at a loss. When I rotate the switch the readout shows the output lines increase and decrease, it also turns on and off with the switch, all of this leads me to beleive the switch is doing what it is supposed to do as I have no fan motor operation at all. Strange how the indicator panel in the dash shows all the right things but no fan action. This is why I question is there a relay I am not finding???

Thoughts please??

 

I don't know if your vehicle has an automatic climate control system, but if it does, there may be a control module specifically for the purpose of automatically controlling blower speed , and it might be malfunctioning.

 

I replaced the resistor (mosfet) after another thorough check of all fuses and relays to no avail. Never did locate a stand alone relay for the front heater blower. Upon replacing the mosfet the blower works well. mystery solved. Appears they are using the circuitry of the mosfet (solid state resistor) to control the blower through all stages.

Thanks for the ideas.

 

Thanks for providing us with the solution.
Thanks for the update..