Question about 2003 Jeep Liberty

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Where do i find the pcm on my 2003 jeep liberty

Posted by Terry Dickerson on

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5 Related Answers

Mikey108

Michael Zangari

  • 475 Answers

SOURCE: 2003 jeep liberty air bag light on is it easy to fix

The system needs to be checked for cades. Airbag codes are pulled out of the ECU with the use of a scanner tool. A good auto mechanic shop will have this or you can go to the dealer. YOU SHOULD NOT TRY TO REPAIR THIS YOURSELF,YOU COULD ACTIVATE THE AIRBAG!!!!!

Posted on Nov 11, 2008

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Brian032472

Brian032472

  • 150 Answers

SOURCE: 2003 Jeep Liberty heater fan problem

It is the blower motor resistor. Look under the passanger side dash and locate the fan housing (looks round and black in color. Then locate the resistor it will be in that housing usually withtwo ten millimeter nuts or two simple screws holding it in. unplug the harness to the resistor and remove the resistor. Part store price is approx. 50.00. Note: on aftermarket (not Jeep) resistor sometimes you have to modify the housing a little to get it in. Hope this helps.

Posted on Feb 01, 2009

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c17hydro

Greg Bernett

  • 2989 Answers

SOURCE: Identifying 2003 Jeep Liberty Automatic Transmission

What is your VIN number?

Posted on Mar 31, 2009

Rich

  • 114 Answers

SOURCE: Need a Jeep Liberty drive belt diagram.

3f6d05b.gif Here you go

Posted on Oct 15, 2009

Adam

  • 207 Answers

SOURCE: my 2003 jeep liberty's air conditioner blows hot

Probably, to be sure make sure the compressor is coming on. With the engine running turn on the ac and watch the rpms, they should drop for a second if the compressor is coming on. If so you just need to recharge, the refrigerant is R-134a, which you can get from your local parts store along with the kit needed to charge it. The kit will come with detailed instructions and is a pretty easy job.

Posted on Jun 10, 2011

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1 Answer

Where is the position of radiator fan relay on jeep liberty 2006


no idea to be honest earlier jeeps had then at the front of the wing down below as i remember ?? newer one would i imagine be in the electrical box under the bonnet near the battery

Dec 02, 2016 | Jeep Cars & Trucks

3 Answers

Hello, I have a jeep liberty 2002, I have p1686 runs and takes two seconds to turn off,, please if you can help me, thanks


you are swapping PCM's that be real bad.
on newer cars with Security this causes it to think your are a thief
and bricks the PCM (skim rules 101)
"until the pcm use in another jeep" huh?
SKIM is Phissed off.
http://www.jeepforum.com/forum/f9/trouble-code-p1686-905620/

Feb 01, 2015 | 2002 Jeep Liberty

1 Answer

P0161 CODE ON JEEP LIBERTY 2003


Posted by Anonymous on Jan 25, 2013
why post to 2013? ELIAS? why not start your own post.
and not mix, engine sensors with HVAC blower heaters. hark.
the OP never once stated cars drive line.
and matters 100%
my guess is a jeep liberty with 3.7L and 2.4L 4 banger.
the answers vary by engines.
so if 161, is set the heater in bank 2 is bad, rear OXY sensor.
O2 Sensor Heater Circuit (Bank 2 Sensor 2)
the pcm measures the heater current flow
when it reads zero the sensor is bad or the wire is cut.(or rusty)

guess 2, is that late poster thinks
P0161 codes are HVAC codes
no it is not.
P0 codes are USA federal base codes.
and are for smog not dash HVAC heaters.
nice guess but dead wrong.

in most cases the 02 sensors is just bad.
the heater inside it just burns open.
all do that , every one... not one lasts
the life of engine, ever.

here ill read it to you, the SM. for 3.7L V6
gas engine, USA book and car....

Trouble Code: P0161 (3.7L V6 VIN K Auto)
O2 (B2 S2) Slow Response

Number of Trips to Set Code: 1

CCM Details

Trouble Code Conditions:
ECT Sensor less than 147?F and BTS signal within 27?F of the ECT Sensor (cold engine), engine started, system voltage over 10.5v, engine running at idle speed for over 12 seconds, and the PCM detected the O2 signal was more than 3.0v for 30-90 seconds.

Possible Causes:

ASD relay output (power) circuit to the heater is open

O2 heater ground circuit is open or O2 signal circuit open

O2 heater element has high resistance, is open or shorted

PCM has failed

Jan 25, 2013 | 2003 Jeep Liberty

1 Answer

Will a leak cause the radiator fan relay curcuit to malfunction on a 2003 jeep liberty 3.7


a leak in coolant system will cause air pocket in the coolant system around the engine coolant temperature sensor.coolant sensor is a thermistor in which when hot cool cause it resistance decrease which affect the voltage from sensor to pcm which will cause engine coolant to turn on.if coolant level okay,check coolant fan fuse and relay, if all is good,engine coolant temperature sensor could be bad or have vechicle code scan for pcm problems it control the coolant fan.fill coolant system to correct level make sure engine coolat reservoir is at full cold mark and not empty.fill coolant system check for leaks,refill coolant overflow jug back to full cold mark dont over fill, if coolant overflow stay empty you have leak either its leaking or you have radiator hoses or radiator leaking coolant.when coolant overflow jug run dry it cause air get in coolant system causing overheating problems.

Jul 25, 2012 | 2003 Jeep Liberty

1 Answer

Whats the oil capacity for a 2003 jeep liberty?


2003 JEEP LIBERTY 2.4L 4-cyl Engine Code [
Engine Oil Grade 1....API* SAE 5W-30 is preferred.
CAPACITIES:
Engine, with filter..........4.7 liters

2003 JEEP LIBERTY 3.7L 6-cyl Engine Code

Engine Oil Grade 1......API* SAE 5W-30 is preferred.

CAPACITIES:
Engine, with filter..........4.7 liters

Thank you for using fixya and good luck

May 31, 2010 | 2003 Jeep Liberty

2 Answers

I have a 2003 Jeep Liberty with a locked sterring wheel


Turn the wheel while turning the key will unlock the wheel wiggle the wheel while turning the key.

Oct 20, 2009 | 2003 Jeep Liberty

1 Answer

Engine light on, stalls out, slow accel, uneven


The ignition timing is off.
The ECM (Elctronic Control Module) is responsible for that.
Take the Liberty to AutoZone to have them scan the PCM code (free) and ask for an explanation print-out (also free). You might want them to clear the error code afterwards, too (yes, free).
Let us know what the codes are and a summary of the print-out.

Oct 01, 2009 | 2003 Jeep Liberty

1 Answer

Go to stop rpms drop jeep liberty shuts off


Here are some things that I have run into. First any sensor cam/crank/tps etc..) that has a reference voltage from the pcm can cause this issue these sensors,(ESPECIALLY THE CRANK SENSORS or CAM Sensor) CAN SHORT OUT INTERNALLY. THIS WILL CAUSE A NO START CONDITION AND A "NO COMMUNICATION" ISSUE WITH THE PCM causing stalling. here are some things that I have run into. This condition has caused numerous unneeded pcm replacements. It gets difficult to diagnose when its an intermittent problem.sometimes a tech will install the pcm and let the jeep leave. Then when temp is right, the sensor shorts and it all happens again. Often by the time the jeep shows up on the hook the engine has cooled and the short is gone. In this case the tech has nothing to go on. YOU MOST LIKELY WONT HAVE A CODE HERE. THIS IS HOW I DIAGNOSE THE ISSUE. WHEN THE CONDITION IS PRESENT (NO COMMUNICATION") with THE KEY ON, START DISCONNECTING EACH SENSOR THAT HAS A REFERENCE VOLTAGE. START WITH THE CRANK SENSOR. IF YOU SEE THE SCANNER GET COMMUNICATION, THEN YOU FOUND THE SHORTED SENSOR.this CAN BE A PAIN IN THE @** IF THE CONDITION IS INTERMITTENT.
PLEASE NOTE: IT IS EXTREMELY RARE THAT THE PCM ITSELF HAS CAUSED THIS CONDITION. 99% OF THE TIME ITS A SENSOR SHORTING OUT, WIPING OUT ALL COMMUNICATION. ALSO NOTE:I HAVE NEVER SEEN THIS CONDITION ACTUALLY DAMAGE THE PCM. ONCE THE SHORTED SENSOR IS REPLACED, THE PCM IS FINE. THERE IS A RESISTOR IN THE PCM THAT PROTECTS IT FROM THIS. Good Luck and I Hope this will help resolve your issue. Please Rate Me. For any further assistance you can always ask me
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Mar 22, 2009 | 2003 Jeep Liberty

2 Answers

2003 3.7 Liberty check engine light for crank sensor


2003 3.7 Liberty check engine light for crank....what? sensor? You have scanned it?

Mar 06, 2009 | 2005 Jeep Liberty

1 Answer

2003 Liberty Engine Swap Blown Motor How to fix timing.


Hey, did you ever figure this out? Ever consider swapping PCM's for a newer 04 PCM that would be tuned for this engine?

Jun 11, 2008 | 2003 Jeep Liberty

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