Question about GPS

4 Answers

INTERNAL electronic schematic Powertrain Control Module part number 56044513AC for 1998 JEEP Grand Cherokee with a 4.0 engine.

Posted by twobalance2 on

  • 1 more comment 
  • twobalance2 Jan 25, 2011

    1998
    jeep grand CHEROKEE LAREDO ZJ 4.0 ENGINE
    PCM/ECM INTERNAL CIRCUIT SCHEMATIC NEEDED.
    Please note that ONLY 1997 and 1998 YEARS MATCH PCM/ECM PART NUMBER 56044513AC
    I have a bad circuit inside the PCM/ECM controlling the fuel gauge reading of empty all the time. Scan tool shows that the fuel gauge works through full range and turns low fuel light off during scan. I can repair to board level once I have the schematic!

  • twobalance2 Jan 25, 2011

    I have already determined that the fuel gauge circuit inside the ECM/PCM is bad and that is why I'm looking for a internal schematic for part number 56044513AC on a 1998 Jeep Grand with a 4.0 engine automatic. ONLY 1997 and 1998 had this part number PCM/ECM.

  • twobalance2 Jan 26, 2011

    INTERNAL schematic for 1998 PCM/ECM JEEP PART NUMBER 54044513AC
    I know about bad cap's and it does me no good without a schematic as I can repair to board level. Please note that a 1993 jeep wire diagram of outside connectors is not what I'm asking for as well as telling me to replace the whole unit as well as telling me what general component failure looks like! The board is covered in sealant and I need the schematic and will continue to repost until someone answers with a schematic or I want my $20 back

×

Ad

4 Answers

fordexpert

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,692 Answers

Hello, I found this diagram with a Browser search for 1998 jeep pcm schematics. The site, JeepZ.com/forum had this article. It seems to show what you need. I hope my solution is helpful to you.INTERNAL electronic schematic Powertrain Control - tj808571.gif

Posted on Jan 26, 2011

Ad

Vincent G

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,363 Answers

I understand you are looking for the schematic but it's going to be hard to located.
As your are waiting for the schematic,I recommend you to start checking for damage on the electrolytic capacitors inside the Power-train Control Module.
Here are few sample pictures of what your need to look for. These are not the actual pictures of your TCM.
Look for sign of leaks on the base of these capacitors. The leak will be on the circuit board. INTERNAL electronic schematic Powertrain Control - mustgo_25.jpg

Also look for top of the capacitor. A failing and failed capacitor will be CONVEX outwaINTERNAL electronic schematic Powertrain Control - mustgo_27.jpg="/uploads/images/mustgo_27.jpg" alt="mustgo_27.jpg" class="h_mi" />
Replace these caps with the same micro f rating. The voltage rating can be higher then the exiting cap.

I hope some expert can come though with the schematic but checking all capacitors for damage is a good start.
Please keep me up to date on the repair and upgrade via email.

Posted on Jan 25, 2011

Ad

raj somaiya

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,370 Answers

TO confirm this you need to check the wirings :---

Power for the fuel pump is supplied by fuse #16 in the Power Distribution Center (PDC), goes through the Fuel Pump Relay and then to the Fuel Pump and the ground completes the circuit. Power for the Fuel Pump Relay coil is supplied by fuse #18 in the PDC and the Powertrain Control Module (PCM) supplies ground. It is a fairly simple circuit to check.

The first thing to do is check all the fuses, especially #16 and #18. If you have they are good then you will need to pull the fuel pump relay and check for power, with the key ON at the dark green/black wire and orange wire. The DG/BK wire is the power for the fuel pump and the OR wire is the power for the relay coil. If you have power there connect a jumper between the DG/BK wire and the dark green/white wire. You should hear the fuel pump running. If not there is a problem in the DG/WT wire from the relay to the pump.
Okay, lets assume that checks out fine, the next thing to do is replace the fuel pump relay and ground the dark blue wire. You should hear the fuel pump running. Okay? Good, now go to the PCM located on the firewall in the engine room. It has three large connectors, black, white and grey. There is a DB wire in cavity 19of the grey connector. Ground this wire and you should hear the fuel pump running. If it does then the wiring for the fuel pump circuit is all good and the PCM will need to be replaced. If it doesn't run, then you have a problem in the DB wire between the relay and the PCM.((((((( DB is dark blue,DG is dark green.WT is white,BK is black.)).--------------- This troubleshooting will help to confirm the fault.
-------------
If in case you require another working PCM. Click this link directly:---
http://cgi.ebay.com/ebaymotors/98-Grand-Cherokee-4-0-ECU-Engine-Computer-56044513AC-/280620208993#ht_1362wt_752
----------
This should help.Thanks.Helpmech.

Posted on Jan 25, 2011

ZJ Limited

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 17,970 Answers

Its possible that you can find this details in the Jeep-ZJ-Grand-Cherokee-Secc-8W-Wiring-Diagrams

Keep us updated.

Posted on Jan 24, 2011

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Tengo un 2004 jeep grand cherokee que ensenna el codigo po871 cual pude ser el problema?..


english works better,

but P0871







http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service





wild guess. missing in my real FSM.

OD Pressure Switch harness is open or shorted

- OD Pressure Switch circuit poor electrical connection

- Faulty OD Pressure Switch

- Internal transmission damage

- Faulty Powertrain Control Module (PCM)

- Faulty Transmission Control Module (TCM)

or read real jeep post

like here.



http://www.pirate4x4.com/forum/jeep-non-hardcore/923294-p0871-2002-grand-cherokee.html

Sep 30, 2015 | Jeep Cars & Trucks

1 Answer

What is a pcm?


PCM = Powertrain Control Module. This electronic controller controls the engine ignition and fuel injection. It receives inputs from several sensors, so that it knows what the engine is doing. On some cars, the PCM also has the alternator voltage regulator build in or the TCM (Transmission Control Module)

Jun 11, 2014 | 2003 Jeep Grand Cherokee

1 Answer

Jeep grand cherokee alarm system


The 1995 Jeep Grand Cherokee Laredo Anti-Theft System is equipped with Vehicle Theft Security System (VTSS). VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running.

The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE and also, remember that here can find the Jeep Grand Cherokee Service Repair Manual.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Nov 25, 2011 | 1995 Jeep Grand Cherokee

1 Answer

1993 jeep power locks dont work lights flash and security flashes. the remote will not unlock or lock the doors


Sound like a problem with the SECURITY SISTEM also called Antitheft system; try to solving applied this procedure.

The following wiring diagram and electronics circuit contains detail schematics of The 1993-1998 Jeep Grand Cherokee Laredo Anti-Theft System. Here in you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures: Alarm_Jeep_Cherokee.pdf

Good luck.

Sep 27, 2011 | 1993 Jeep Grand Cherokee

1 Answer

We are trying to replace the computer on a 1998 jeep cherokee but cant seem to find it ...


The Powertrain Control Module (PCM) (the computer) is located on the right firewall directly behind the glove box inside the engine compartment. These control modules are somewhat expensive and have to contain the exact part numbers to accomodate all options. These must be programmed by the dealer.

Sep 16, 2011 | 1998 Jeep Cherokee

1 Answer

1996 Jeep Cherokke 5.2 grand laredo, missing on acceleration found loose distributer need to set timing.


Base (initial) ignition timing is NOT adjustable. Do not attempt to adjust ignition timing by rotating the distributor. All ignition timing functions are controlled by the Powertrain Control Module.Adjusting the timing on a Jeep Grand Cherokee requires special tools and an understanding of engine mechanics. Changing the timing on a Jeep Grand Cherokee with distributor-less ignition requires professional reprogramming of the powertrain control module. This guide covers Jeep Grand Cherokee models with distributed ignition only. you can go to this site and it will explain it. www.ehow.com/how_4521340_adjust-timing-jeep have a good day !!

Jun 07, 2011 | Jeep Cherokee Cars & Trucks

1 Answer

1999 Grand Cherokee Limited Jeep anti-theft system had shut all electronics down and engine will not start. what can I do to reset the system....


The 1996 Jeep Grand Cherokee Laredo Anti-Theft System is equipped with Vehicle Theft Security System (VTSS). VTSS system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running.

The following wiring diagram and electronics circuit contains detail schematics of The 1996 Jeep Grand Cherokee Laredo Anti-Theft System. Herein you will find interconnection between electronics parts of the system such as body control module, auto headlamp light sensor. VTSS led, driver door module, passenger door module, cylinder lock switch, junction block, power distribution center, and grounding. Herein you will learn also how the Vehicle Theft Security System works, removal, installation, testing and troubleshooting procedures.

Try HERE.

Also, remember that here can find the Jeep Grand Cherokee Service & Repair Manual.
Hope help with this.

May 03, 2010 | 1999 Jeep Grand Cherokee

1 Answer

Where is the computer on a 1996 jeep grand cherokee laredo


Powertrain Control Module: Locations
The Powertrain Control Module (PCM) is located in the right-rear side of the engine compartment.


ad195d1.jpg

Oct 01, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Internal control module memory check sum error came up .


the Powertrain Control Module is defective, nothing else will cause this code, you need a rebuilt PCM.

Jun 17, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Code 53


Code 53 is "internal pcm failure" pcm is powertrain control module or you main engine computer.Replace the computer.Good Luck!!!

Aug 06, 2008 | 1995 Jeep Grand Cherokee

Not finding what you are looking for?
GPS Logo

Related Topics:

1,625 people viewed this question

Ask a Question

Usually answered in minutes!

Top GPS Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

The Knight
The Knight

Level 3 Expert

76534 Answers

Tom Chichester

Level 3 Expert

61336 Answers

Are you a GPS Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...