Abs
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Joined: Aug 2006
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From: sumter sc
Abs
that freaking abs
have red brake light and amber abs light on dash. i was at the dodge dealership when it occured and had them check it. tech said it was the module because he could not comunicate with it.
glad i put my computer on it because i have code rear circuit failure or something like that anyone ever experienced this and where do i look for the problem. i am not an ABS man and my scan tool does not have any trouble trees for this.
2000 dodge 3500 4wabs
thanks in advance.
have red brake light and amber abs light on dash. i was at the dodge dealership when it occured and had them check it. tech said it was the module because he could not comunicate with it.
glad i put my computer on it because i have code rear circuit failure or something like that anyone ever experienced this and where do i look for the problem. i am not an ABS man and my scan tool does not have any trouble trees for this.
2000 dodge 3500 4wabs
thanks in advance.
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Joined: Aug 2001
Posts: 3,529
Likes: 2
From: Disputanta, Virginia
You can type ABS into the SEARCH function and find posts like the one below and others with info also.
Hope this helps
Hope this helps
Here is an old post of mine from 9-27-2004 that may help some.
I replaced the rear wheel speed sensor (RWSS) that is located on the top of the rear-end differential and my ABS and BRAKE light have gone off.
Now for a few findings that I came across before replacing it,,,,
*With the rear wheels up on jack-stands, The speedometer did not function at all when in gear at approx 30-35mph. (guesstamated),,,,, however, putting it back down on the ground and driving around,,,,, everything worked fine. (other than ABS and BRAKE light still on)
*When I removed the old RWSS, There was no continuity between the two prongs on the sensor.
I had a few options on what to do,,,
Spend the $60-some bucks for a dealer to put it on their diagnostic gismo (every shop I went to said that only a DC dealership could access the Controller for the Anti-lock brakes. (CAB) and I had already figured out that the CAB does not set any codes in the ECM that are readable by the average DRB scanner.) I figured I would gamble and spend the $33 for the RWSS and the reason for my decision was based on a theory that my front sensors were OK because the speedo and Cruise Control worked fine when all four wheels were on the ground.
This is only my theory and maybe one of our gurus can tell me if I'm correct or not.
On a 4 wheel ABS equipped truck, the CAB must get signals from all 4 of its data gathering sensors in order for it and the speedo and cruise control to function properly.
I also think, this is why the trucks that are equipped with only the Rear Wheel ABS systems have problems with their speedo's and cruise control when the Rear Wheel Speed Sensor goes bad. Evidently this system only uses the two data gathering sensors,,,
The RWSS
And the Transmission Speed Sensor
Does this sound like a fair explanation?
One thing I'm sure of,,,,,,,,,, I don't have those BLASTED idiot lights aggrivating me!
BTW the part number for the RWSS on my 2 wheel drive,,,, 4 wheel ABS equipped 2500 is 56028187AE and this is the same part number for the Rear Wheel ABS only trucks also.
NOTE* However,,, it does appear that the 4 wheel drive trucks have a different part number according to the parts guy I spoke with today.
Keep in mind that this post was from 2004 and concerned my 1999 2wd / 4wheel ABS truck.
I replaced the rear wheel speed sensor (RWSS) that is located on the top of the rear-end differential and my ABS and BRAKE light have gone off.
Now for a few findings that I came across before replacing it,,,,
*With the rear wheels up on jack-stands, The speedometer did not function at all when in gear at approx 30-35mph. (guesstamated),,,,, however, putting it back down on the ground and driving around,,,,, everything worked fine. (other than ABS and BRAKE light still on)
*When I removed the old RWSS, There was no continuity between the two prongs on the sensor.
I had a few options on what to do,,,
Spend the $60-some bucks for a dealer to put it on their diagnostic gismo (every shop I went to said that only a DC dealership could access the Controller for the Anti-lock brakes. (CAB) and I had already figured out that the CAB does not set any codes in the ECM that are readable by the average DRB scanner.) I figured I would gamble and spend the $33 for the RWSS and the reason for my decision was based on a theory that my front sensors were OK because the speedo and Cruise Control worked fine when all four wheels were on the ground.
This is only my theory and maybe one of our gurus can tell me if I'm correct or not.
On a 4 wheel ABS equipped truck, the CAB must get signals from all 4 of its data gathering sensors in order for it and the speedo and cruise control to function properly.
- Front Left wheel
- Front Right wheel
- RWSS (remember that there is only the one sensor mounted on the pumpkin)
- And the Transmission Speed Sensor which is mounted in the transmission.
I also think, this is why the trucks that are equipped with only the Rear Wheel ABS systems have problems with their speedo's and cruise control when the Rear Wheel Speed Sensor goes bad. Evidently this system only uses the two data gathering sensors,,,
The RWSS
And the Transmission Speed Sensor
Does this sound like a fair explanation?
One thing I'm sure of,,,,,,,,,, I don't have those BLASTED idiot lights aggrivating me!
BTW the part number for the RWSS on my 2 wheel drive,,,, 4 wheel ABS equipped 2500 is 56028187AE and this is the same part number for the Rear Wheel ABS only trucks also.
NOTE* However,,, it does appear that the 4 wheel drive trucks have a different part number according to the parts guy I spoke with today.
Keep in mind that this post was from 2004 and concerned my 1999 2wd / 4wheel ABS truck.
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