Hello,

Excellent info and photos. Thank you. My 2003 AWD Astro has ABS plus Brake light come on intermitantly.
AstroEric

 

GM seemed to have the occasional soldering problem around the turn of the century. (Kind of like their early water based paints)
Wiper motors, ABS modules, cruise control modules, etc.
Bad thing is that they are annoying.
Good thing is that with a little patience and know how, you can fix most of them.

 

It may not be just GM.
I have a '99 Ford Ranger with a wiper control that occasionally feels the need to radomly wipe the windshield once or twice, about once a month. Rain or shine, it doesn't matter.
I have never bothered to look into it.
Rod J

 

It may not be just GM.
I have a '99 Ford Ranger with a wiper control that occasionally feels the need to radomly wipe the windshield once or twice, about once a month. Rain or shine, it doesn't matter.
I have never bothered to look into it.
Rod J

Oh I have no doubt.
Many parts are supplied by contractors that also make parts for other brands.
The ABS module on my 2018 Ram truck is almost identical to the one on my 2007 Saturn.

 

Wow! That is some impressive electromechanical surgery. I have the same problem with my 2000 Astro Van. Pennsylvania state inspection does not fail a vehicle for ABS dash light. Thus, I just live with the intermittent ABS light.

 

Thank you! I have actually done this three times on my astro van, I guess the first two times I didn't do it right, been five or six years now since the last time so I must of figured it out in the end. Just to be clear abs light comes on and parking brake light, both at the same time, don't remember ever getting a code, maybe I'm forgetting? Thanks again for pics and write up! Astroratsun

 

Long time lurker, first time poster. I've gleaned a lot of great info from the community but haven't seen this fix yet. My 2003 began setting the ABS light intermittently, after recent a long drive on a bad road out of the High Sierra, it was now constant. Scan tool revealed a C0267 ABS code, open motor circuit. View attachment 302310

There's lots of DIY info on other Kelsey Hayes brake modules on YT but nothing useful on the Astro. I crawled underneath the van about where the drivers seat is and set about removing the model for a look, first blew off 22 years of road dust with compressed air then removed the heat shield and 3 connectors (one is buried and a real pain.) A 1/4" drive ratchet and T20 (working by feel) got the mounting screws free, thankfully this original CA van has very little rust so the screws were intact. View attachment 302311

Unfortunately my ‘stro had the cover silicone sealed to the plastic housing, as opposed to others I had seen online that could be separated with a T8 driver. I used a sharp X-acto knife blade and a magnifying light helped get them apart. I resisted the urge to pry it with a screwdriver opting for some nylon razor blades instead to protect the circuit board and aluminum cover. View attachment 302314

A close inspection of the circuit board revealed cracked solder joints right where the 2 pin connector for the ABS motor was, a quick re-solder of those pads was in order. View attachment 302313

Also removed the 8 spots of dried out pink heatsink compound with lacquer thinner and Qtips, Replaced with some new Super Lube compound before silicone sealing the cover back on and letting it set overnight under a little weight. Replacing the module was easy, trickiest part is the four screws (2 by feel only), use a light touch when tightening them, you’ll feel them snug as the plastic body has internal metal sleeves to prevent crushing.

The most time I spent on the task was cleaning off the old silicone, worth it to me over spending $200-400 for a reman ABS module. Glad to say the ABS light is out, I cleared the code and brakes operate normal two weeks on. Hopes this helps another member, so far as I can tell the sealed ABS module was used from 2000-2005.

Sent in my ABS for repair. It was doing the same thing. $80, one week turn time. It's been working fine for the past 18 months. Pardon Our Interruption...