2003 Jeep Liberty Logo
Anonymous Posted on Jun 22, 2013

2003 jeep liberty bcm what does it control?

I have a 2003 jeep liberty. The check engine light comes on as well as battery light and the transmission will act up what could cause this?

1 Answer

BILL HAND

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  • Jeep Master 513 Answers
  • Posted on Dec 04, 2014
BILL HAND
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Joined: Nov 30, 2012
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Check you alternator output . Low voltage will cause shifting problems

5 Related Answers

Anonymous

  • 475 Answers
  • Posted on Nov 11, 2008

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!!!!!

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Anonymous

  • 150 Answers
  • Posted on Feb 01, 2009

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.

Anonymous

  • 4669 Answers
  • Posted on Mar 06, 2009

SOURCE: 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?

c17hydro

Greg Bernett

  • 2993 Answers
  • Posted on Mar 31, 2009

SOURCE: Identifying 2003 Jeep Liberty Automatic Transmission

What is your VIN number?

Anonymous

  • 1615 Answers
  • Posted on Jul 15, 2009

SOURCE: Have a 2005 Jeep Liberty. After starting from a

The flashing light indicates you have a big misfire that could damage the catalytic converter.. Being you were going uphill (under high load) this would indicate an ignition issue. You may have a bad coil or wires or a bad spark plug. The reason you could only go 30mph was because the computer was put in limp mode. This is a stratagy to prevent excessive damage to components. , Get it checked out ASAP

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0helpful
1answer

Code u1411 jeep liberty 2006

wow , no engine options stated, or type of driveline.... wow.
this is covered in the FSM, read that.
it states
U1411-Implausible Fuel Volume Signal Received that means to get the car fully scanned,
using a real scan tool that sees all 2006, jeep DTC errors.
including BCM codes.
the manual tells you what to do.

here is just small expert from the Factory.serv.manual

quote
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)(Refer To List 1).
Theory of Operation
The BCM has to send the PCM a fuel volume signal over CAN C. The signal the BCM sends over CAN C is implausible.
Diagnostic Test
1. ACTIVE DTC
Ignition on, engine not running.
With a scan tool read DTCs.
Is the DTC active at this time?
Yes
  • Go To 2
No
Refer To List: 2. CAN C BUS DTCS ALSO ACTIVE
With a scan tool check for DTCs in the BCM.
Are any CAN C related DTCs active at this time?
Yes
  • (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the appropriate diagnostic procedures.
  • Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)
No
--------------------------------------------------------------------------------------------
that word CAN , means the vehicle network communications buss called CAN.
if the PCM can not TALK to the BCM. this can cause the
data to be wrong. and the
Implausible , data.
greek ,huh,
get it serviced by any ASE shop in town or if desperate JEEP.
0helpful
1answer

Battery voltage low on 2003 jeep liberty 3.7 just changed altenator and battery

you reverse the battery cables?
you remove the alternator before pulling the battery NEG. LUG?
if you do pulled the alt, with out lug pull that blows a huge fuse.
battery voltage low and no voltage stated, nor how taken. (crankiing or not or both)
3.7 L PowerTech V6 (gasoline)
my guess is this is a NO CRANK post .?
"solenoid, code pops?" what is that, a noise? or?
what was **** ,
transmission wont , what.????
0helpful
1answer

Cant find the dipstick on a standard jeep liberty 2003 to change the transmission fluid

The transmission fluid stick is usually toward the back of the engine.That's right where the engine transmission connect together.It should also be labeled transmission on top of the stick.To check transmission fluid level,you need to let it run about 5 minutes on a level surface,then check the level.When you check it,if you see little metal flakes on the stick,there is something very wrong with your transmission.Good luck! Greg
0helpful
1answer

Check engine light stays on - 2003 jeep liberty sport - 87,000 miles

Dear Madam or Sir,

If the "Check Engine Light" comes up, the on board diagnosis system of your vehicle has detected an error with the petrol injection system, a faulty sensor, stuck servo motor etc. for example.

The light indicates the recognition and storage of an digital trouble code to the system´s memory to the driver. You should see a mechanic to check the ECU (engine control unit) for saved trouble codes.

Please don´t hesitate too long to prevent the engine from serious damage.


Kind regards from Germany

Auto Doc P.
2helpful
3answers
0helpful
1answer

Shifting problem when starting off from a start

Hi, the problem may be simple. Try to check the automatic transmission fluid and filter for it may be burned and needs fluid change. A smooth run will be noticeable after doing this.
0helpful
2answers

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?
0helpful
1answer

02 Jeep Liberty check engine light and trans. revving

SCANN-TOOL THE CODE ,IT WILL COME UP WITH A TRANS CONTROL UNIT.
0helpful
1answer

2003 jeep liberty sport 4x4

It means that your transmission is probably slipping check your fluids and have you transmission filter changed also change your plugs your check engine lite should go out. Please rate me any further assistance you can always ask me. 1ak+f4pj7cbm32cuniyi2gaaaaaelftksuqmcc
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