Mombu the Dodge Forum sponsored links

Go Back   Mombu the Dodge Forum > Dodge > How to display error / fault codes 2001 Dodge Ram?
User Name
Password
REGISTER NOW! Mark Forums Read

sponsored links


Reply
 
1 24th September 14:48
mopar man
External User
 
Posts: 1
Default How to display error / fault codes 2001 Dodge Ram?


What combination of switches or knobs do I push to get a listing of
any error or fault codes for a 2001 Dodge ram (5.2 L / 318 V-8 with
overhead information console) ?

It cranks fine but is not starting, is displaying "no bus" in the
odometer, and is showing "CCD" on the overhead display where the fuel
DTE and MPG readings should be. Fuel guage reads way below empty.

It's got very low miles (about 20k) and spends most of it's time in a
garage. Recently it spent a few days outside during very heavy rain.

At first I thought someone stole gas out of the tank, but it seems I'm
really just having an electrical connection problem.

I want to go through the list on this page:

http://www.dodgetalk.com/forums/showthread.php?t=32676

But I need to get an error code first, hence my question about codes.

Thanx.
  Reply With Quote


  sponsored links


2 24th September 14:48
fmb
External User
 
Posts: 1
Default How to display error / fault codes 2001 Dodge Ram?


Quick GS using ["no bus" CCD dodge] and this interesting link popped up.
http://www.obd-codes.com/forums/724-obd-codes-my-durango-odometer-says-quotno-busquot.html
or http://tinyurl.com/mtly4 . Yeah, I know, a 99 durango is not a '01 Ram,
but could point you in a good direction to begin looking.

Also try http://www.dodgedakotas.com/boards/v8/6191.html

FMB
  Reply With Quote


  sponsored links


3 24th September 14:48
mopar man
External User
 
Posts: 1
Default no bus / CCD message (was: Re: How to display error / fault codes 2001Dodge Ram?)


Ok, this worked for me (2001 Dodge Ram short cab long box):

1. Ignition switch off
2. Press and hold the trip reset knob
3. Turn the ignition switch to on but do not start.
4. Hold the reset knob for approx 10 seconds or until the word
CHEC appears in the display then release.

When I saw "chec" in the odo display, I let go of the trip reset knob
and the following numbers appeared one after another:

900
920
921
940
950
999

I take it that 999 is like an "end-of-code" indicator.

So I'm pretty much getting this entire laundry list:

900 The CCD data bus is not operational.

1. Check the CCD data bus connection at the cluster.
2. Check the cluster fuses.
3. Check the CCD data bus.
4. Check the CCD data bus voltage.
5. Check the CCD data bus terminations.


920 The cluster is not receiving a vehicle message from the PCM.

1. Check the PCM software level and re-flash if required.
2. Use a DRB scan tool to verify that the vehicle speed message
is being sent by the PCM.


921 The cluster is not receiving a distance pulse message from
the PCM.

1. Check the PCM software level and re-flash if required.
2. Use a DRB scan tool to verify that the distance pulse message
is being sent by the PCM.


940 The cluster is not receiving an airbag message from the ACM

1. Check the CCD data bus connections at the ACM.
2. Check the ACM fuse.


950 The cluster is not receiving an ABS lamp-on message from
the CAB.

1. Check the CCD data bus connections at the CAB
2. Check the CAB fuse.


The truck has been parked for a few days outside and has experienced
several bouts of torrential rain. I haven't been able to start it
since. It was running fine prior to being parked. Haven't had any
problems with it like this since the day I bought it new (March
2001). It's got no leaks that I'm aware of.

When I turn on the ignition, all the guages move. Battery moves to 8
volts, temp moves to 55, oil pressure moves to 0, and even the fuel
guage moves a little (but not to the zero or E mark).

I guess I'll have to poke around under/behind the dash, or maybe the
engine compartment.

If anyone's got any tips, I'd love to hear them.
  Reply With Quote
4 24th September 14:48
maxpower
External User
 
Posts: 1
Default How to display error / fault codes 2001 Dodge Ram?


Not a truck technician but what you have is a total bus failure. there are a
few things you can check. The C130 connector, the connector that is mounted
at the firewall that feeds the inside. (Its a 43 pin connector) Since you
say it happened when it was in the rain for awhile I would start there.
Separate it and check for corrosion. There could be other reasons as well. A
bad ground for the engine controller is possible. There are connectors below
the dash at the Knee blocker that could effect this as well.
Of course an engine controller could also be at fault.

Glenn Beasley
Chrysler Tech
  Reply With Quote
5 24th September 14:48
tom lawrence
External User
 
Posts: 1
Default no bus / CCD message (was: Re: How to display error / fault codes 2001 Dodge Ram?)


Yes, but that's the procedure for the instrument cluster diagnostic check.
While that may be helpful in diagnosing the 'CCD Bus' message, to display
any engine-related OBD-II trouble codes, cycle the ignition switch
OFF-ON-OFF-ON-OFF-ON, and one or more 'P***x' codes will display on the
odometer, culminating with 'Pdone' to indicate no more codes.

8 volts?!?! Let's first try a better battery that can provide the
electronics with the proper voltage. No wonder nothing's working right.
When the PCM is fed any less than 10.5 volts, strange things start to occur.
  Reply With Quote
6 24th September 14:48
mopar man
External User
 
Posts: 1
Default no bus / CCD message (was: Re: How to display error / fault codes2001 Dodge Ram?)


I've tried that procedure several times, but it doesn't seem to start
a diagnostic reporting process. The only thing that happens when I
perform an [on-off] [on-off] [on] ignition-key cycle is the same
thing that happens when I just switch the ignition to on - which is
the usual bell and light show from the instrument panel.


Voltage measured at the battery (with everything off) is 12.15 volts.
When the ignition is switched on, battery voltage drops to 12.05 volts
(DRL comes on too, which is normal). Why the guages (especially the
fuel gauge) is reading below E, I have no idea.
  Reply With Quote
7 24th September 14:48
miles
External User
 
Posts: 1
Default How to display error / fault codes 2001 Dodge Ram?


Turn the key off-on-off-on-off-on. The display should then show any
error codes present. It takes a few tries to get the timing of off-on
right but it works.
  Reply With Quote
8 24th September 14:48
mopar man
External User
 
Posts: 1
Default How to display error / fault codes 2001 Dodge Ram?


Let's say the ignition switch has these settings:

1) key-insert / key removal position
2) radio only position (one step counter-clock-wise from 1)
3) unknown (off?) position (one step clock-wise from 1)
4) Ignition/run position (one step clock-wise from 3)
5) crank engine position (one step clock-wise from 4)

I assume that for the off-on off-on off-on sequence, that "on" is
position 4 and "off" is position 3.

When I perform an off-on-off sequence, the bell rings immediately.
When I perform an off-on (and stay on) sequence, the bell rings 6
times, then the odometer reading flashes 4 times and changes to "no
buS", then the bell rings 4 times then a pause and then it rings 2
more times (and the low-fuel indicator comes on).

When I perform an off-on off-on off-on (and stay on) sequence, the
bell rings (or starts to ring) between each step, and at the end it
does what I describe above (rings 6 times, etc).

If I have the "off" and "on" positions correct, then how long is the
"off" time, and how long is the "on" time ?
  Reply With Quote
9 24th September 14:48
mopar man
External User
 
Posts: 1
Default no bus / CCD message (was: Re: How to display error / fault codes2001 Dodge Ram?)


Story so far:

2001 Dodge ram short cab long box 5.2L/318 V-8 with overhead
information console. Very low miles (about 20k) usually parked every
night in a garage sometimes not driven for a week or two at a time.
Usually not driven at all in winter. Was working fine, was parked in
the driveway, stayed out during a couple of torrential storms (a few
days ago) and for the past 2 days it will crank but doesn't run.

It displays "no bus" in the odometer, and is showing "CCD" on the
overhead display where the fuel DTE and MPG readings should be. When
the ignition is turned on, all guages show some activity. Battery
moves to 8 volts, temp moves to 55, oil pressure moves to 0, and even
the fuel guage moves a little (but not to the zero or E mark).

Battery volts (as measured with a meter) is showing 12.15 volts with
nothing turned on, and 12.05 volts when key is turned to ignition
position. DRL (daylight running lights) come on as normal when key is
in ignition position. All fuses in the engine compartment and under
the small cover at the drivers-side dashboard position are good. When
I crank the engine, it turns over very fast, but doesn't start.

Under the hood, I discovered that the gasket/rubber weatherstripping
that runs across the top of the firewall was completely off and laying
across the back of the engine/air cleaner. It appears to only be a
press-fit (no glue or contact cement). Therefore any rain that went
between the hood and windshield could easily flow into the engine
compartment. It's been dry for the past 2 days, there is no evidence
of water pooling. Everything is bone dry.

I have a Haynes repair manual for Dodge Ram 1994-2001, and if the
wiring diagrams are correct then the fuel guage is a simple circuit
that is not dependent on a computer or the system bus - so it should
be indicating something above the empty mark (which it doesn't). That
manual doesn't have a good explanation of the instrument console
wiring or connections. I don't think that manual is up-to-date for
2000/2001 Ram models.

I've disconnected the battery twice (each for about 15-20 minutes) and
the second time I unplugged 3 large cables from the PCM and removed
the PCM from the firewall. Contacts appear clean and not a hint of
corrosion on either the cable ends or the PCM. I removed 4 screws
holding the cover of the PCM and observed a layer of rubber (felt a
little like jello) potting compound covering the circuit board. No
obvious water intrusion into or under the protective layer. No
components seemed dammaged.

When performing this sequence:

I get the following codes:


Where exactly is that? What do I have to take apart or unscrew to get
to an access point?

Where are they?

How many wires is the CCD data bus? What colors are they? Where are
their access points?

Don't think I'm gonna be able to do that.


Or that.


Again, no can do.


Ditto.

What is the ACM? Where is it?

Where is it?


What's a CAB? Where is it?

Where is it?
  Reply With Quote
10 24th September 14:48
mopar man
External User
 
Posts: 1
Default no bus / CCD message (was: Re: How to display error / fault codes2001 Dodge Ram?)


Update:

According to this web site:

http://www.dodgeram.org/tech/gas/Trouble/pcm_fault_code.htm

Only Dodge Ram's 94 - 97 will flash the codes according to the on-off
sequence. Since mine is a 2001, I guess that explains why it's not
working and I'm not seeing any codes.

I checked for 5V at the MAP and TPS and it was there in both cases.
With one or the other still plugged in, I was getting 5V and no change
in the over-all situation.

The Tranny speed sensor was giving me 12V (the Haynes book is saying
8?).

I guess I'll have to see if there's a cheap scan tool available, or
make one:

http://www.elmelectronics.com/obdindex.html
  Reply With Quote
Reply


Thread Tools
Display Modes




Copyright 2006 SmartyDevil.com - Dies Mies Jeschet Boenedoesef Douvema Enitemaus -
666