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jimb
GenIII
5/17/2003
16:40:10
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 Subject: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Every now and then, the "ABS" AND "Brake" Light will come on
together. This has occurred in the past. The first time I had
ABS/Brake light syndrome, it was the rear speed control sensor. The
second time it happened (about six weeks later), I popped a code for
the one up forward, replaced it and all was well.
Now, they are on again, not full time. On again, off again. Weird.
I happened to be near an Auto Zone today when they were on and
decided to go in to have the code read. The guy hooked up the unit
and the damned thing passed -- no code. Weird. Lights are on, and
there's no code.
This afternoon I checked the tranny fluid. All ok there. I took off
the electrical connectors front and rear speed sensors -- cleaned
them. All is ok in that department.
Any ideas? Thanks in advance. - Jim, '99, 5.9
99 SY 3.9 Dakota Sport
99 PB 5.9 Durango SLT
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Daniel D
Dodge Dakota
JOIN HERE
5/18/2003
04:31:18
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
a normal code scanner is only going to read check engine lights. you need to go into the abs controller to check the code. most of them time when they come on it's the rwal sensor. i believe that's what your referring to when you say rear speed sensor. it sits on top the rear axle. I would bring it to a dealership and have them check to code on it. i have also seen sometimes where the tone ring that goes around the ring gear is messed up causing the rear sensor to give a bad reading. to check for that pull your rear cover off and rotate your drive shaft and inspect the tone ring. you will have to pull the chunk out to change it though. good luck.
Daniel D
"Spark Plug"
http://www.domesticdisturbancela.com
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Jimb
GenIII
5/18/2003
07:52:50
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
It might be easier just to change the rear sensor. The latter part of your post -- I don't know what you mean. Also -- how does one go into the ABS controller to check the code? Sounds expensive...
I believe the dealer wants $80 just to give me the code. That's rediculous... would rather take a $20 risk and install the rear sensor. - Jim
99 SY 3.9 Dakota Sport
99 PB 5.9 Durango SLT
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JimB
GenIII
5/18/2003
17:07:19
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
The lights were OFF all day today. Weird, huh? Anyone in this group have any ideas? - Jim
99 SY 3.9 Dakota Sport
99 PB 5.9 Durango SLT
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hardbody
Dodge Dakota
JOIN HERE
5/21/2003
21:12:06
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
my truck was doing the same thing (01 4x4, 4.7) with the lights being on, turned out to be the hydraulic control unit, it controls the ABS, dealer replaced it no charge in about 20 minutes, also if the brake and ABS lights come on, but the speedometer IS STILL REGISTERING CORRECTLY than it's probabley the HCU, when the front or rear speed sensor goes it effects the speedometer, do a search for "brake and abs lights on" I posted what happens to the speedometer depending on which sensor is bad.
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BearHit
Dodge Dakota
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5/22/2003
01:54:18
|  RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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My wife's Durango had some intermittent symptoms like that.
I believe it was caused by my big feet...
She had some wire harnesses hanging a little low near the brake pedal. When I squeeze in and finally get everything adjusted to "man-size" sometimes I end up kicking the low-hanging wires.
Seems like this was coincident with her warning lights...
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KyBishop
Dodge Dakota
JOIN HERE
5/22/2003
08:00:16
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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I don't know about the 2nd generation dakota's but I had a 91 5.2 4x4 that I could cycle the ignition key on-off-on-off-on and get the error code. With the last cycle to on, leave it on and the dash light will give you a series of flashes. You would count the flashes in between each pause and get the code numbers. Then you could look in the Haynes manual at the code numbers and what the error was.
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JimB
GenIII
5/22/2003
13:06:33
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
You can't cycle the ignition switch on a 99 to get a code -- they took that privledge away, figured they could get 60-80 bucks out of you to read the code for you, so why enable you to do something they can charge you for.
The speedo works fine.
I wanna say it's the sensor up front. Be interested to know Hardbody -- what's an HCU? It that some type of screw in/screw out sensor as well? Thanks in advance - Jim
99 SY 3.9 Dakota Sport
99 PB 5.9 Durango SLT
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hardbody
Dodge Dakota
JOIN HERE
5/22/2003
18:28:31
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
From what the dealer told me the HCU Stands for " hydraulic control unit" It's mounted, I think on the frame Behind the drivers side front tire, they told me it controls the ABS.
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Jimb
GenIII
5/27/2003
08:41:54
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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I may have to bite the bullet and have the Dodge boys find a code. Auto Zone couldn't get a code -- truck "passed" their analyzer. I hate giving those people money! - Jim
99 SY 3.9 Dakota Sport
99 PB 5.9 Durango SLT
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victor
Dodge Dakota
JOIN HERE
12/28/2004
13:24:17
|  RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
i had a problem with abs and brake light on and under 15 mph not working.i fixed it with the rear diff senor. but now then you are stopping at 15 mph it starts click and can feel it in the padel and feel padel get soft help me please.
replaced brake booster, master, pads, senor.
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Neil
Dodge Dakota
JOIN HERE
12/29/2004
06:27:38
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Jim,
It's most likely the rear ABS/speed sensor. It's very, very, very very common for that part to fail. It's a dealer only part. It will cost 35-45 and is very easy to change out. I would not pay the dealer 80.00 at this point.
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doh
Dodge Dakota
JOIN HERE
12/29/2004
07:09:10
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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This afternoon I checked the tranny fluid
WTF would tranny fluid have to do with a brake issue??????????
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jason76mtl
Dodge Dakota
JOIN HERE
12/26/2020
16:06:04
| RE: ABS and BRAKE LIGHTS TOGETHER... NO CODE
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Message:
I have the same problem except from time to time my
speedo doesnt work. Could it be all the same?
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