ABS conversion

Barry McCockener · Post by **Barry McCockener** » Tue Aug 16, 2011 10:17 pm

My 2000 doesn't have ABS and I'm wondering what I would have to do to put an ABS system on it and where I could find the parts to do it.

OB · Post by OB » Tue Aug 16, 2011 10:38 pm

You would need ABS front axles, rear disc brakes if you don't have them already, the HCU, lines, and possibly a few other odds and ends. I would bet that the network will require a DRBIII be used to flash the modules to match VINs for communication purposes. All of these parts can be pulled at a junk yard or ordered new from the dealer. Some can probably be purchased used here on our for sale boards.

I'll wait for someone else to chime in who knows more. I wonder if the master cylinder needs replaced too?

Hudson_Neon · Post by **Hudson_Neon** » Tue Aug 16, 2011 10:40 pm

you'll need...

hubs
axles
ALL the wiring for all 4 wheels
abs dash
abs dash wiring
abs computer

i'm sure there's probably some little parts here and there too. all of it's available at the stealership i'm sure, but you can also go to a junkyard and cross your fingers that they have it all. that is IF they have one with abs there

OB · Post by OB » Tue Aug 16, 2011 10:42 pm

Ah good call. Rear hubs only, or fronts too? I thought the reluctor rings were on the axles up front? Yeah obviously gonna need wiring and speed sensors! Duh! What are you referring to when you say ABS dash? You don't think the clusters are designed to accept the ABS signal (for the lamp) without modification? I would think the harnesses would be the same but with unused pins at the other end, and a PCM that isn't designed to look for signals from said pins.

Hudson_Neon · Post by **Hudson_Neon** » Tue Aug 16, 2011 10:44 pm

OB wrote:Ah good call. Rear hubs only, or fronts too? I thought the reluctor rings were on the axles up front? Yeah obviously gonna need wiring and speed sensors! Duh! What are you referring to when you say ABS dash? You don't think the clusters are designed to accept the ABS signal (for the lamp) without modification?

it IS on the axles, but the spot for the sensor is in the knuckle

OB · Post by OB » Tue Aug 16, 2011 10:46 pm

Hudson_Neon wrote: it IS on the axles, but the spot for the sensor is in the knuckle

Then you need front knuckles not hubs?

See ninja edits above.

Hudson_Neon · Post by **Hudson_Neon** » Tue Aug 16, 2011 10:57 pm

well considering that the hub is pressed into the knuckle, it's all pretty much the same. personally, when/if i have a wheel bearing go bad the whole knuckle may or may not just come out

Barry McCockener · Post by **Barry McCockener** » Tue Aug 16, 2011 11:46 pm

Did any of the 00-02 models come with ABS or would I have to get it from 03-05? If I have to get the brain from an 03-05 car, I'll stick with what I have, no NGC for me haha

Hudson_Neon · Post by **Hudson_Neon** » Wed Aug 17, 2011 12:32 am

03-05 didn't have it. only some early 2gns

OB · Post by OB » Wed Aug 17, 2011 2:01 am

Hudson_Neon wrote:03-05 didn't have it. only some early 2gns

Actually, all R/T and ACR cars had it, so that means 01-04. Finding one in a JY is unlikely. I have a feeling the SRT ABS is the same too. The SRT master cylinder is different, but only internally I believe. It wouldn't make much sense for them to change it considering the acclaim the original ACR ABS got. Anyone know if they interchange at all?

hansken_yo · Post by **hansken_yo** » Tue Aug 23, 2011 8:26 pm

Oh you'll need new hard lines for the brakes as well since they need to connect to the abs controller and then to the brake master cylinder. The brake master cylinder will also need to be swapped out to have the right connections for the controller a well.

You'll need all new wire harnessed so the sensors have something to connect to. All of them. And then everything else mentioned above. Pretty much a new car.

Post by **occasional demons** » Tue Aug 23, 2011 9:26 pm

viewtopic.php?t=54517

Danteneon · Post by **Danteneon** » Wed Aug 24, 2011 8:18 am

Seems like this question comes up every 1 1/2 to 2 years

Hudson_Neon · Post by **Hudson_Neon** » Wed Aug 24, 2011 11:00 am

and no matter how you look at it, it's not worth the time

hansken_yo · Post by **hansken_yo** » Wed Aug 24, 2011 12:34 pm

True dat yo

OB · Post by OB » Wed Aug 24, 2011 9:19 pm

Hudson_Neon wrote:and no matter how you look at it, it's not worth the time

Especially considering how effective non-ABS cars are with a decent driver and quality brakes and tires. I wouldn't go to ABS even if it were free and a half hour install.

hansken_yo · Post by **hansken_yo** » Thu Aug 25, 2011 12:20 pm

Lol, I was just thinking that driving lessons would be cheaper...

... And more effective

Gnuserup · Post by **Gnuserup** » Thu Aug 25, 2011 3:19 pm

both will make it complete

Another thing could be the need for a ABS-prepared Cluster (as I recently recognized that the ABS-lamp of the different cluster I tried was flashing though there is absolutely no ABS present on my SXT [and I have that lamp installed on the original cluster just for fun as well - and there it does not flash])

Give me just a few months and sooner or later I will try

ACR MAN · Post by **ACR MAN** » Mon Sep 19, 2011 8:48 pm

When I swapped my SOHC/MTX non-ABS 2002 SXT to a 2004 R/T drivetrain & electronics, I also swapped in the complete ABS braking system. I had the complete 2004 R/T parts car, so why not? Here's what I found:

* The metal brake lines, master cylinder and booster are specific to the ABS, of course. I just swapped in the entire line bundle and MC/booster from the 2004 R/T
* The car body already had holes punched in it for the bolts to mount the ABS hydraulic assembly.
* All front knuckles have provisions to mount the ABS wheel speed sensors
* The front ABS tonewheels are on the outer CV joints, so you need axles from the ABS equipped car
* The rear ABS tonewheels are on the hubs, so you need those
* Not all rear disc caliper adapters are machined with the hole for ABS wheel speed sensor mounting. Obviously, my 2004 R/T parts were fine... but if you grab rear caliper adapters from a 1995-99 ACR or non-ABS 1998-99 R/T you will find there is no hole for the wheel speed sensor.
* The underhood wiring harness with PDC is specific to ABS, because it includes the module connector, the front wheel speed sensor connectors and a 4-pin connector for the sub-harness to the rear wheel speed sensors.
* There is a seperate 4-wire harness that clips onto the fuel/brake line bundle to provide for connection of the rear wheel speed sensors.
* The dash harness is not specific to ABS. I used my 2002 dash harness with the 2004 underhood harness. I had to move two wires in the bulkhead connector to keep the cruise control functional, but no mods were needed for the electrical side of the ABS.
* The body wiring harness is not specific to ABS. I used my 2002 body harness with the 2004 underhood harness, and the only mods necessary were to provide a proper connection of the NVLD evap leak detection device (which the NGC uses) instead of the LDP that was used on 2000-02 neons.
* The instrument cluster is not specific to ABS. My original tach-equipped 2002 SXT cluster learned (via the PCI/J1850 data bus) that the car was now ABS-equipped, and the ABS lamp worked correctly without any scan tool configuration necessary.
* According to the Mopar parts catlog, the 2004 R/T and 2004 SRT-4 use the same part number master cylinder, booster, ABS hydraulic unit and ABS control module. This is surprising, given that the SRT-4 has larger diameter front rotors and different front calipers than the R/T.