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How to bypass fan relay on 2002 jeep grand Cherokee with manual switch

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  • 387 Answers

Is the relay or sensor bad? You could just wire fan to battery and use a toggle switch...

Posted on Dec 12, 2016

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: my 2002 jeep cherokee laredo is over heating

Got your cure just behind the pasenger side headlight is a sensor you wiill see it unplugs you may have to take the bumper off maybe not.Replace that coolant sensor .

Posted on Jul 23, 2008

Mikey108
  • 475 Answers

SOURCE: 2002 jeep grande cherokee check engine light

A common problem on many of the new cars is that when a person gets gas, they don't tighten up the gas cap. This will turn on the check engine light. Did you get gas recently? Another option is to see what code is stored in the ECU that turned the light on. This is done with a scanner tool. If you do not have a scanner, then have a dealer look at it.

Posted on Nov 07, 2008

  • 11 Answers

SOURCE: radiator fan not working replaced relay,temp

Check the wiring from the relay to the fan motor, and check the wiring from the fuse block. Basically check all wires that supply power to the fan motor, use a volt meter. Fan Relay (behind headlight, under battery) on the 2001 GC 4.0L are a piece of ****, I change mine almost yearly. The problem is their location, a high heat area prone to the elements. I understand that 2002 and newer, the location was changed and the problem solved. Relay might close the circuit when cold or at reasonable temps, but might open a circuit when it heats up, causing the problem.

Posted on Apr 03, 2009

  • 5 Answers

SOURCE: 2002 jeep grand cherokee fan not working?????

Replace the fan relay switch. The dealer will charge you 400 to pull the bumper off, or you can buy the part for 45 and cut the hole in the plastic near the passenger headlight assembly and replace it yourself. There are instructions for this procedure on the web somewhere. I have had this problem more than once with my 02 GC V6.

Posted on Aug 10, 2009

motor1258
  • 6674 Answers

SOURCE: where is the radiator fan relay switch on a 2002

check under hood in fuse relay box. Map should be underside of cover.

Posted on Aug 27, 2009

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1 Answer

Bypass fan relay


Don't. Find wiring problem and fix it. If ypu need a temp fix.. run wire from battery to a switch back to fan. Run the other to the ground.

Aug 01, 2014 | 2002 Jeep Grand Cherokee

1 Answer

My 2002 jeep grand cherokee laredo wull not start shutdown 2 days ago checked all fuses but the ecu fuses don't know how to find them


According with your other quesions, the DTC P1491 code is actually radiator fan control relay circuit.
Soft reset if the battery disconnect would have erased the code; the first thing I would replace for that code (fan relay).
Additionally, its possible thta your THEFT system is activated, check owners manual to disarm. Check details here:
- Grand Cherokee fuses

- Diagnostic Trouble Codes

Hope this helps.

Mar 07, 2012 | 2002 Jeep Grand Cherokee

2 Answers

COOLING FAN WILL NOT KICK ON


You probably have a bad fan relay; as for fixing it yourself here is the closest thing I have found... Jeep Grand Cherokee Cooling Fan

Hope helps (remember comment and rated this help).

Jul 06, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Where do you find the radiator fan relay on 2002 jeep grand cherokee larado


behind head light,, on passenger side, on fenders underside ,remove head light completely,, drill 2 inch hole into protective shield, this will expose switch

Nov 16, 2009 | 2002 Jeep Grand Cherokee

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2002 Jeep grand Cherokee fan relay


yes it is and it is a real sob to change.

Sep 29, 2009 | 2000 Jeep Grand Cherokee

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Engine fan trouble, 2000 jeep grand


cjk the temp sending unit. It is a grounding switch if single wire, and is bypassed if you have A/C. good luck

Jun 15, 2009 | 2000 Jeep Grand Cherokee

1 Answer

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relay should be in the power distribution box near the battery.

Jun 05, 2009 | 2002 Jeep Grand Cherokee

2 Answers

2000 4.7L Jeep Grand Cherokee fan relay switch replacement


Isnt yours in the power distribution box near the battery? if so it just plugs in.

Mar 31, 2009 | 2000 Jeep Grand Cherokee

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