Acura Repair Questions? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
There are several components that contribute to the operation of the cooling fan, You have a coolant tempreature switch, the fan control module and the fan itself. Some testing will be necessary to determine which of these components is at fault..
Does the fan come on when the air conditioning is turned on?
Is the radiator full of coolant?
Do you have a testlight or voltmeter to run some tests with?
Let me know and we will work from there
Great you covered a lot of ground already,
If all 7 fuses are good lets start by making sure the fans will work on the diagram below find the fan relays and you are going to jump the terminals with a piece of wire.
The fan relays are located here
One at a time jump from the white to the white/green and the white/blue respectivly
If the fans come on jumping the relay we will move to the coolant temp sensors.
Great pull the connector off the B sensor and short the terminals together with a paperclip while the key is on. If the fan does not turn on after one minute check the light green/yellow wire at the radiator fan relay to see if it is grounded. If the relay is grounded check the yellow wire for power. If you have power replace the relay if you do not have power replace the radiator fan control module
For good measure you can short switch A to be sure the input to the fan control module is commanded on
If the fan does come on with the sensors shorted the sensor needs to be replaced. Acura has a procedure to test the sensor involving boiling water and a thermometer but