| From | Message |
WELD48
Dodge Dakota
JOIN HERE
7/10/2011
17:45:38
|
 Subject: RE: no bus PCM failure!!!!!!
IP: Logged
Message:
PLEASE READ I HAVE THE SOLUTION!!!!!! DO NOT REPLACE YOUR PCM......... IT FAILS AGAIN BECAUSE OF THE CRANKCASE SENSOR PLEASE READ!!!!!!!!!!!!!!!
i have a 99' dakota with the same PCM problem, it had had it for years.....NOW I HAVE THE SOLUTION FOR EVERYONE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!as i know it always seems to be the first plug on your PCM that you have to jiggle to get the cluster to reset once it's cooled down.................the real problem is NOT the pcm NO BUS.... it is your CRANKCASE sensor located on the BELL HOUSING......remove the starter and the bell housing cover and blow it out repetedley ensure all the small dust like metal fillings are out.........remove the crankcase sensor...there is only two mounting bolts....pull it and the wires out carefully from the bell housing......IMEDIATELY you'll notice that this sensor is MAGNETIC AND COVERED IN METAL SHAVINGS!!!!!with some sensor cleaner and a small pick you should be able to remove all the particals from the sensor put everything back the way you found it NO NEW PARTS ARE NESSECARY!!!!you'll now find you can run that truck all damn day in the sun!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!just remeber in a few weeks pull the sensor back out and maintain
cleaning it won't be long before you have all the pestering filings out that block the sensor from reading your crank and shut down your VEHICHAL!!!!!!!!!!!!!my truck has been running in the hot sun now for three weeks!!!!!!!!!!!!!!!!!!!!!!!!!!!STUPID MAGNETIC SENSORS!!! PLEASE READ THIS IT IT AND EASY FIX TRUST ME NO NEW PARTS OR SPECIAL TOOLS REQUIRED
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Iknew
Dodge Dakota
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7/11/2011
17:49:49
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
All ready new the answer!
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Delano
Dodge Dakota
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8/27/2011
22:05:33
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
Thank you weld48. I cleaned the crank
sensor and dodge ram started right up.
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tony
Dodge Dakota
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9/16/2011
03:08:15
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
I have a 2000 QUAD CAB 4.7 GETTING NO BUS, THE OWNER POWERWASHED THE ENGINE fried the pcm, now the 5v to sensors is restored but still no bus, no fireing nothing... asd relay has 12v to it but is not being pulled down by the pcm either?
there is some discoloring on the connector to pcm, the area where the 12v is powering the ign. coils and injectors, have not verified IF the connector is fried or not? is it even replaceable/part avail?
i've checked all grounds, power dist. box, everything looks fine.
don't think crank sensor has anything to do with it, unplugged and still no bus, ran fine till he power washed!
any ideas where else to look?
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LOL
Dodge Dakota
JOIN HERE
9/16/2011
16:08:31
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
unplugged the crank sensor?
& you expect the engine to run?
how?
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tony
Dodge Dakota
JOIN HERE
9/20/2011
11:16:13
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
NOOOOOO! unplugged it but still got 'NO BUS'
didn't expect it to start!
getting p1389 i think it was on a scanner, and looking that up said the pcm was not getting any output from ASD relay when energised, i probed the pin on pcm, hit key, when ASD relay energised I DID get 12v till the relay de-energised, so not a wireing issue...
wondering if the rebuilt pcm i got has a problem?
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b j
Dodge Dakota
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3/20/2013
10:49:32
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
have a 02 dodge dakota blinks no bus on miles 3 times then check engine light comes on with a few other lights on dash no gauges work no start also fine it more so after it rains still not runnig for a week now starts to run rough then i no it will screw up again
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Alfred
Dodge Dakota
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3/28/2014
22:47:04
| RE:2002 dodge dakota no bus light
IP: Logged
Message:
My 2002 dodge dakota will not start it has a no bus
light on where the gauges are. Can someone give me
some help!!!!!
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TomW
Dodge Dakota
JOIN HERE
8/24/2014
23:13:58
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
I guess 2014 is the year for 2002 Dakotas to shred their PCM units....
I have the same no bus message on odometer.
Truck will turn over, no bus message blinks a few times and then constant. I have looked at several forums for answers, haven't found any answers that provide enough information. Help!
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123
Dodge Dakota
JOIN HERE
8/25/2014
19:36:04
| GOODLUCK
IP: Logged
Message:
I had the same thing wrong with my 2002 DAKOTA. "NOBUS", tried to start it one day and couldn't. Thought it was a wiring or sensor problem, maybe needed a new cluster or something but Come to find out all it needed was a Brand new computer. truck started right up after that.
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resister
Dodge Dakota
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8/26/2014
17:22:45
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
junk truck or buy new computer, your call.
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BillR
Dodge Dakota
JOIN HERE
9/01/2014
23:30:06
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
2001 Dakota quad cab 3.9. Same problem. No bus on
odometer. Scan tool cannot communicate with PCM. Check
5v ref on crankshaft, MAF, TPS and camshaft sensors. All
good none grounding out. Replaced crankshaft sensor. It was
running great and just died driving down the road. Verified all
ground connections. Pulled PCM, opened case sealed in gel
with no visible damage. I cannot find the ASD relay that some
people have referenced. Any help would be appreciated.
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BillR
Dodge Dakota
JOIN HERE
9/01/2014
23:31:07
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
2001 Dakota quad cab 3.9. Same problem. No bus on
odometer. Scan tool cannot communicate with PCM. Check
5v ref on crankshaft, MAF, TPS and camshaft sensors. All
good none grounding out. Replaced crankshaft sensor. It was
running great and just died driving down the road. Verified all
ground connections. Pulled PCM, opened case sealed in gel
with no visible damage. I cannot find the ASD relay that some
people have referenced. Any help would be appreciated.
|
Joe-carpenter
Dodge Dakota
JOIN HERE
1/17/2015
18:58:05
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
I have 99 Dodge Dakota, it dies driving down the road. It used to happen after 30 minutes on highway, now it is down to 5-10 minute drive,
and it dies. At first the gauges freeze, then they
drop down to nothing. All the gauges are not working, but flashers, radio starter all work.
no bus on odometer some of the time. It takes
10 minutes usually to work, last time it took 50
minutes to work. When I turn the key on and the
gauges come to life, then I know truck will
start. I got no clue, any ideas?
Truck only has 55,000 miles so I want to keep it.
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AandPDan
Dodge Dakota
JOIN HERE
1/17/2015
20:43:48
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
Hi Joe,
I'd be looking at the PCM. All the gauges run
through it, along with the ignition and fuel.
It's not uncommon for their to be bad solder
joints that fail as the PCM warms up.
Swapping it is easy and you can get a
remanufactured one.
You could try to obtain codes when it happens - do
you have a code reader? The '99 won't do the key
trick I believe.
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Geri
Dodge Dakota
JOIN HERE
9/13/2015
21:50:40
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
Where is the crank case sensor? I have this problem with my
Dakota and need to clean it but not sure where to find it
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killer k6
Dodge Dakota
JOIN HERE
11/21/2015
19:46:02
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
2003 4door 4x4 Dakota...
Please help me with some info, i went to the teuck
today to start it and let it warm up i come back to
leave and noticed that none of my gages were workin
all the light like check engine, abs, fuel and all
that good stuff was in and the shift indicator was
was changing by its self going thru PRND321, the
teuck runs just fine and everything works just that
problem... dont know if this helps but left my
passenger window down and it rained a little in the
truck but sont know if thats a big deal or not
thanks so much and God Bless
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steph
Dodge Dakota
JOIN HERE
12/14/2015
12:44:59
|  RE: no bus PCM failure!!!!!!
IP: Logged
Message:
Well i was having the same problem after i installed a light bar
it would start and stall like 5 sseconds after. I think it was
something to do with the battery for my truck because i
disconected it for 10 minutes and put it back on and it started
up and ran fine. I was getting scared reading all these
comments and it also just hit 200,000km but now its fine i
hope this helps someone else too
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Shawn Visitor
Dodge Dakota
JOIN HERE
1/08/2016
08:49:46
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
I have a Quad cab 2004 Dodge Dakota, 3.7 4 wheel drive manual tranny. The problem I'm having is the security light will come on, then the chime starts, then the service 4wd will come on and the electronic 4 wheel drive will not work. The left rear power lock will not work and at times the right as well. At times the information sensor goes crazy at times with all those lights coming on as well as brakes light flashing, door ajar etc. Any help will be appreciated...
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peetie
Dodge Dakota
JOIN HERE
3/28/2016
20:26:46
| RE: no bus PCM failure!!!!!!
IP: Logged
Message:
I TRIED TO START A 2008 DAKOTA WITH THE GROUND WIRES NEAR THE ECM UN GROUNDED......NOW IT WON'T TURN OVER .......WHAT DAMAGE DID I DO ?????? ANYBODY ?????
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