Question about Jeep Liberty

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I have a 2005 jeep liberty 3.7 liter ; i have power from the key in start position but there's no ground from the pcm; what tells the pcm to make a ground? and where would i find the nuetruel switch? it is an automatic transmission 6 cylinder.

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Neutral safety switch is on the side of the transmission and a very common problem with chrysler vehicles.This is a picture of what your looking for(this would be facing the transmission) but it gives you a general idea. Its 32.00 at jcwhitney.com




i have a 2005 jeep - g_30584g_cl_1.jpg

Posted on May 21, 2011

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2005 Jeep Liberty will not start no click no noise rather new battery. starts with jump but will not turn off even removed the key. replaced the power relay. still no start. newer battery.


Did you check the starter motor relay , location , under hood power distribution center ? When you turn the key to start the ignition switch sends a 12 volt input to the PCM / ECM - engine computer . The engine computer will then energize the starter motor relay . This is all computer controlled . Hooking up a scan tool to check for DTC'S - diagnostic trouble codes an viewing input data should be the first in diagnosing a problem like this .
040 Starting System Tests Start Here
048 Engine Hard to Start or No Start Scan Data for Starting Problems
How to voltage drop test starter motor circuit

Starter Voltage Drop



Jun 24, 2017 | 2005 Jeep Liberty

2 Answers

I have a 2002 jeep liberty kj 3.7L and the fuel pump relay clicking slowly but constantly with ignition in off position? Relay already replaced, so not that. Ideas?


Are you sure that it is in fact the fuel pump relay ? With the key off no B+ voltage is supplied to the relay . Pin 86 at the base ,where the relay plugs into . Fuse #15 a 10 amp fuse is hot with ignition switch in the run or start position . Pin 85 is control from the PCM - engine computer . Pin's 30 & 87 are the load side , fuel pump being the load . If your unfamiliar with the pins i'm talking about , pull the relay out an look on the bottom ,you will see these numbers .Pin #30 will show B+ voltage all the time , pin 86 only with the key on or start .

Mar 07, 2017 | 2002 Jeep Liberty

2 Answers

3.7 liter v-6 2002 Jeep liberty firing order


no job stated,
its not spark , 3.7L usa runs 6 COPS, all PCM fired direct
must be playing with what
CAMS
why not say the job, so we can be
ON THE SAME PAGE>?

if not in USA , now be like the time to say,no?
chapter 8 in service manual

posted VAST times,search much?

order-3kz44in2t3aazct2ooxw0hro-5-0.jpg usa official, book. from jeep,not NET rumors.

Mar 01, 2017 | Jeep Cars & Trucks

1 Answer

My horn started blowing on my 2005 jeep liberty


that's the antitheft open drivers door window , with door closed put key in door and turn open to lock 3 times in a row and remove key

Oct 14, 2014 | 2005 Jeep Liberty

1 Answer

What fuse is for the PCM on a 2005 Jeep Liberty?


It's 10A FUSE 14 in the junction block.

Oct 07, 2017 | 2005 Jeep Liberty

1 Answer

What fuse is for the PCM on a 2005 Jeep Liberty?


the key with a slash light is the security light, it has been set off, most likely cause is the key, but you will need to have someone retreve the anti theft codes, might be a easey as just reseting the anti theft system. you will need a scanner to retreve the codes....good luck

Jan 05, 2012 | 2005 Jeep Liberty

1 Answer

Will not crank turn key and nothing happens the car has power the starter is good the battery is good the relays are all good


Check fuse # 28 (15 Amp) with a test light. (Located in the Power Distribution Center (PDC) on the left side of the engine compartment) It should have power only when the ignition switch is turned to the START position. If there is no power there, then you probably have a bad ignition switch. The only other fuse involved would be fuse #8 (40 Amp) which is also in the PDC. If this fuse is blown a whole lot of stuff is not going to work - not just your starter. The starter motor relay (Also in the PDC) is controlled by the PowertrainControl Module. The wiring diagrams show it as a 5 pin relay whereonly 4 of the pins are used. If you check for power and ground at the connector pins for the relay, there should be one pin that is hot all the time. This is the power from fuse #8. a second pin should be hot with the key in the RUN and START positions. This would be the circuit running through fuse# 28. One pin should have continuity to ground (your test light should light up if you hook it to the battery positive terminal and probe this terminal.) This is the circuit that goes down to the starter. The 4th pin will have no continuity to anything at all until the ignition is placed in the START position, when it will have continuity to ground. This is the relay control circuit from the PCM.
If you dont have power at the relay connector as described, then you must repair the circuits between the fuses and the relay. If you don't have the grounds as describedfor the starter circuit, you ether have an open circuit going to the starter or a bad starter. If you are not getting ground on the control circuit from the PCM, it could be several other things causing your no-crank problem. It could be an open circuit between the starter relay and the PCM or it could be that the PCM is not allowing an engine start for one reason or another - The PCM will have to be scanned to find out what the problem is.

Mar 05, 2011 | 2004 Jeep Liberty

1 Answer

What fuse needs to be replaced for 2/1 O2 sensor on 2005 jeep liberty?


there is no fuse for the O2 sensors. The PCM supplies power to the heater and the sensor.

Is there a trouble code that indicated there is a problem with that sensor?

Jan 21, 2011 | 2005 Jeep Liberty

1 Answer

My jeep Liberty starts fine when the car is cold. Once the car warms up, if the car is turned off, it will not start, not even a click, until the car cools back off ( about 3 hours). Could you tell me what...


Can't tell you without being there but check the starter relay and all connections at battery, starter and grounds both on engine and fender. Check with a test light or volt meter (Meter is better because it will show power drop off if any) Test with key in run position and in start position as well. Don't forget there is a neutral safety switch that can also fail so check in park and neutral also.

Oct 28, 2009 | 2004 Jeep Liberty

1 Answer

2001 jeep grand cherokee no start, no cam signal or ASD control from pcm


IF YOU PULL OUT CAM SENSOR YOU HAVE TO PUT A TOOTH PICK IN THE TWO HOLES ON THE TOP AND THEN PUT IT BACK IN AND FACE IT TO THE BACK OF THE ENGINE.KING OF 4.0

May 09, 2009 | 1999 Jeep Grand Cherokee

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