Question about 2002 Jeep Grand Cherokee

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2002 jeep cherokee laraedo mice chew wire under hood now check engine light comes on was told by an mechanic that it was a power controle module

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Whats your question, the light is a emission light and all repairs are covered up to 50 thousand miles, the mice damage would fall under your comprehensive part of your auto policy. the mice call a good rodent exterminator.

Posted on Oct 01, 2010


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1 Answer

Where is the ECU located on a 2002 Grand Cherokee?

first off leave it alone, i bet its ok.
99.9% are,
no engine stated, so we must guess.
sad huh>? you want to fix this ? with no symptoms stated.???
no context , no job stated. etc??????
asked like 100 times on this forum so you didnt search first.?
the PCM ,
see chapter, electronics control modules here.
chapter 8E in the FSM book
page 20 , it is clear?

its the module with the most wire, on all cars , making it easy to find
in most cases. just a casual look finds it in most car under dash or under hood.

RR engine bay.
see it

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I cannot find the location of my onboard computer for my 1995 Jeep Grand Cherokee. My engine light has come on; even my mechanic cannot find it. Do you plug in under the dash or under the hood? Thanks.

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Sep 02, 2010 | 1995 Jeep Grand Cherokee

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1 Answer

On my 1994 grand cherokee laraedo 4.0 under the hood is mya fuse box with a 20amp fuse labeled I.O.D wat does that stand for and wat does it do?

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3 Answers

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P1698 code

check this link for ur problem
Under the hood on the driverside of the cherokee is the PCM or Powertrain Control Module. The Transmission Control Module or TCM is under the dash on the driverside. It's actually kinda of small, I would guess 4 inches by 3 inches. with what look like wings coming off the sides and two bolts. 

link 2

Thanks Good Luck
Appreciate to rate as "Fixya"

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1 Answer

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There could be a fusible link under the hood off the starter relay that is burnt out.

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