Question about 2002 Jeep Grand Cherokee

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Where would the relay switches be for the cooling fan

Where would the relay switch be for the cooling fan

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  • jonesgwen Apr 27, 2010

    yeah did not see it

  • jonesgwen Apr 27, 2010

    u got a pic of the switch

  • jonesgwen Apr 27, 2010

    sorry didn't mean any harm thanks anyway

  • Richard Scordino May 11, 2010

    No harm, just look harder!!! Bet it's there!!! But again, the factory guys love hiding stuff all the time....no reason it should not be with the other relays! (I hate engineers!!!)

  • Richard Scordino May 11, 2010

    You need to look carefully. If it's behind the headlamp, it's usually hidden by the vacuum reservoir, and no, never thought of taking a photo while lying on my back removing one.

  • Richard Scordino May 11, 2010

    I'm sure you already looked in the power distribution center...but, did you look behind/below the r/f headlight!

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I changed the relay on my wifes, it was below the headlamp mount panel on the passenger side. I removed the front bumper cover and mount panel to get to it but if you remove the headlamp and cut a hole beneath it in the plastic mount panel you should be able to get at it

Posted on May 04, 2010

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Under the hood, driver side (usually) firewall behind battery. (passenger side if battery is there). Look at the back of the relay box cover for diagram. If there is none refer to repair manual for diagram.

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Posted on Apr 27, 2010

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Posted on Jan 02, 2017

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SOURCE: 01 grand cherokee fan relay/oil pressure

I don't know if this will help anyone, but i had a issue with my jeep running hot and check engine light coming on as well. After alot of trips to different shops - the last one found that there were two senors in the engine for the fan that need to be changed. Everyone would aways fine the one up top but not the second one. After that, have not had any other problems like it since.

Posted on Mar 23, 2009

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SOURCE: cooling relay switch

Relay is in the power distribution center near the battery. does the fan go off when you remove the relay? Relay is turned on by the computer after it receives info from the temp sensor. Why didn't the "guy" order a new relay? Was he a tech in a shop?

Posted on May 19, 2009

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Cooling fan(s) wiring diagram


Its either t Cooling Fan Switch ABCDEFGHIJKLMNOPQRSTUVWXYZ Inspect/Test/Replace

To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, upper firewall, mounted in corner in relay block
When testing a cooling fan switch, first test it with the engine cold, then test it when the engine reaches a specified temperature. Check your vehicle's service manual for more directions.
To check a switch, disconnect the connector at the switch. with an ohmmeter, check for continuity between the terminals of the switch with the switch moved to the on position and to the off position.

To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, front side of wheelwell, mounted in relay panel
The continuity through a switch can be checked with an ohmmeter. With the switch open, there should be infinite resistance. With the switch closed, there should be zero resistance. With the switch off, there should be no continuity between the terminals. With the switch on, there should be good continuity between the terminals. If the switch is activated by something mechanical and doesn't complete the circuit when it should, check the adjustment of the switch. (Some switches are not adjustable.) If the adjustment is correct, replace the switch. Another way to check a switch is to simply bypass it with a jumper wire. If the component works when the switch is jumped, a bad switch is indicated.
Voltage drop across switches should also be checked. Ideally, when the switch is closed there should be no voltage drop. Any voltage drop indicates resistance and the switch should be replaced.
he fan motor,the fan switch,or the coolant temp.sensor.

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Hi,

Fan Relay switch is stuck open. This of course assumes your temperature sensor is working appropriately. Which I assumed since you seem to know that the engine is running hot.

Replace the fan relay switch. The relay switch is tripped when the temperature sensor tells the computer the engine is too hot.

Until you get the relay switch replaced, you can either by-pass the relay switch and directly connect the fans to the battery, or turn on your A/C ALL the time and use it at a minimum setting. This will keep the cooling fans running at all times.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

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Cooling relay switch


Relay is in the power distribution center near the battery. does the fan go off when you remove the relay? Relay is turned on by the computer after it receives info from the temp sensor. Why didn't the "guy" order a new relay? Was he a tech in a shop?

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