Go Back   DODGE RAM FORUM - Dodge Truck Forums > Dodge Ram Generations Forum > 2nd Gen : 1994 - 2002 > General Discussion


General Discussion

Pcm bad?


This is a discussion on Pcm bad? within the General Discussion forums, part of the 2nd Gen : 1994 - 2002 category!
Hey guys I'm new to this forum, just recently traded my 2003 Chevy Silverado 2500HD 6.0 for a 1998 12v ...


Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 02-07-2014, 05:03 AM   #1 (permalink)
 
i_burn_diesel's Avatar
Junior Member
 
Join Date: Feb 2014
Location: Southern. IN
Age: 21
Posts: 8

Ram Year: 1998
Engine: 12v 5.9
Default Pcm bad?
Hey guys I'm new to this forum, just recently traded my 2003 Chevy Silverado 2500HD 6.0 for a 1998 12v Dodge 5.9 Cummins Dually. I had problems in my Chevrolet (go figure) with the instrument panel going bad instrument motors not working. When I picked up this new truck I noticed none of the instrument panel worked at all, either. Speedometer, tachometer, fuel gauge, oil gauge, ect don't move at all. All of these warning lights are lit up on the dash, though. The alternator is fine but will not charge the batteries and I have tested the alternator to make sure it is fine and it is. So I set up an external regulator to charge the batteries and I've been looking around some forums and such but cannot get a definitive answer on whether it is the PCM or not. Thanks for any input on the matter.

-Logan


-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN


Sponsored Ad
Register to remove this ad.


__________________
-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN
i_burn_diesel is offline   Reply With Quote
Old 02-11-2014, 07:12 PM   #2 (permalink)
 
i_burn_diesel's Avatar
Junior Member
 
Join Date: Feb 2014
Location: Southern. IN
Age: 21
Posts: 8

Ram Year: 1998
Engine: 12v 5.9
Default
Any ideas


-Logan P
1998 5.9 Dodge Ram 3500
"farm truck"
Born n' raised Southern IN


__________________
-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN
i_burn_diesel is offline   Reply With Quote
Old 02-11-2014, 07:17 PM   #3 (permalink)
Senior Member
 
Join Date: Dec 2013
Location: Near McAlester, Oklahoma
Age: 22
Posts: 430

Ram Year: 2012
Engine: hemi 5.7 with K&N CAI and Diablosport Trinity Tuner
Default
From what I understand on those trucks the voltage regulator is part of the pcm and in 90+% of cases if the alternator and batteries are for sure good it is the pcm.
Unless some wires are melted or chewed somewhere.

Sent from my SAMSUNG-SGH-I747 using Tapatalk
rustydagger is offline   Reply With Quote
Old 02-11-2014, 07:23 PM   #4 (permalink)
Senior Member
 
Join Date: Dec 2013
Location: Near McAlester, Oklahoma
Age: 22
Posts: 430

Ram Year: 2012
Engine: hemi 5.7 with K&N CAI and Diablosport Trinity Tuner
Default
Have you taken it anywhere and had them read the obd codes?
Is the wiring tampered with much? There are several systems that people can and do bypass instead of replacing parts.

Sent from my SAMSUNG-SGH-I747 using Tapatalk
rustydagger is offline   Reply With Quote
Old 02-11-2014, 07:55 PM   #5 (permalink)
 
Redtruck-VA's Avatar
Senior Member
 
Join Date: Jun 2010
Location: Virginia
Name: PI_greg
Posts: 5,285

Ram Year: 2003 & 1989 D250 RWD
Engine: Hemi-5.7, 5.9 12v & 24v diesel
Default
You might check this out to compare with what you have or perhaps to install to charge the batteries.
Chrysler, Dodge, Jeep External Voltage Regulator kit wiring, External Voltage Regulator in place of broken computer alternator control


__________________
Greg 2003 SXT-Hemi SuperCharged, OCP manifold, billet CR 20" wheels, AeroForce gage, AFR, fuel Pressure, 46RH trans, Edge 3000, PPP Track Warrior, Shiftlite, TCI ProShifter, 180 stat, all aluminum radiator, HD Trans Cooler, DTT 4:10, LT's, Magnaflow duals cats, Mcgaughys 3/6 spindle kit, Monroe shocks, Caltracs, Aeon bumps, Roll Pan, shaved Ant, tail gate and cowl. And a 2007 QC manual trans/4wd diesel for a support vehicle.
Redtruck-VA is offline   Reply With Quote
Old 02-11-2014, 08:43 PM   #6 (permalink)
Senior Member
 
Join Date: Jan 2013
Location: NA
Posts: 5,141

Ram Year: truck
Engine: gas
Default
Not my best area for these trucks but there is a fuse for all of that, no bus should be a code and I think the fuse is called oid or ord or oid ???? I will see if I can find it and post back.
Merc225hp is offline   Reply With Quote
Old 02-11-2014, 09:41 PM   #7 (permalink)
 
i_burn_diesel's Avatar
Junior Member
 
Join Date: Feb 2014
Location: Southern. IN
Age: 21
Posts: 8

Ram Year: 1998
Engine: 12v 5.9
Default
Redtruck-VA I already have an external regulator installed and the batteries charge.


-Logan P
1998 5.9 Dodge Ram 3500
"farm truck"
Born n' raised Southern IN


__________________
-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN
i_burn_diesel is offline   Reply With Quote
Old 02-11-2014, 09:42 PM   #8 (permalink)
 
i_burn_diesel's Avatar
Junior Member
 
Join Date: Feb 2014
Location: Southern. IN
Age: 21
Posts: 8

Ram Year: 1998
Engine: 12v 5.9
Default
I don't believe the wiring has been tampered with he told me he took it to dodge dealership and they said it was the pcm but I just wanted to double check before I shell out $400 to get a new pcm and it flashed


-Logan P
1998 5.9 Dodge Ram 3500
"farm truck"
Born n' raised Southern IN


__________________
-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN
i_burn_diesel is offline   Reply With Quote
Old 02-11-2014, 09:43 PM   #9 (permalink)
 
i_burn_diesel's Avatar
Junior Member
 
Join Date: Feb 2014
Location: Southern. IN
Age: 21
Posts: 8

Ram Year: 1998
Engine: 12v 5.9
Default
Okay merc get back at me, I appreciate all the replies guys. Thanks for all the input loving the new #dodge pickup


-Logan P
1998 5.9 Dodge Ram 3500
"farm truck"
Born n' raised Southern IN


__________________
-Logan P
1998 5.9 12v long bed cummins
"farm truck"
Been shootin sh** since '96
i'm a Copenhagen cowboy
Born n' raised Southern IN
i_burn_diesel is offline   Reply With Quote
Old 02-11-2014, 10:26 PM   #10 (permalink)
Senior Member
 
Join Date: Dec 2013
Location: Near McAlester, Oklahoma
Age: 22
Posts: 430

Ram Year: 2012
Engine: hemi 5.7 with K&N CAI and Diablosport Trinity Tuner
Default
What are your plans for this truck? It would be a good time to switch to a performance computer system or something like that lol

Sent from my SAMSUNG-SGH-I747 using Tapatalk
rustydagger is offline   Reply With Quote
Reply

Tags
bad cluster, gauges not working, pcm issues, voltage regulator


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


<




GM Truck Forum
Ford Raptor Forum
Chevy Tahoe Forum
Chevy Cobalt Forum
Chevy Camaro Forum
Toyota FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum