M936a2 abs

[funky winkerbean]

I have a 936A2 with abs and the light is on. Was wondering if anyone knows what I can use to diagnose problem and where it gets plugged in at?

 

[Suprman]

Did you check the 2 fused tucked under the drivers dash? There is a diagnostic plug under the passenger side dash. You need a specific reader for it though. How is your voltage gauge reading?

 

[funky winkerbean]

Didn't check fuses because I didn't know about them but it clicks under truck when turned on. where can I purchase a reader?

 

[Suprman]

Probably the control box clicking. The readers are few and far between. Check the fuses. Check your battery voltage overcharging alternator will kill the abs ecu.

 

[swbradley1]

At the risk of offending you have you looked at the manuals?

 

[funky winkerbean]

Didn't check fuses because I didn't know about them but it clicks under truck when turned on. where can I purchase a reader?

 

[funky winkerbean]

Don't have manuals yet.Waiting on them. Battery and running voltage is good.

 

[swbradley1]

Two mouse clicks and voila! 939 Manuals

http://www.steelsoldiers.com/forumdisplay.php?115-5-ton-and-up-TMs

One search:

http://www.jatonkam35s.com/jatonkaM939seriesTMdownloadpage.htm

 

[doghead]

If you have not been waiting for the abs to do it's thing before starting, or shutting off the truck incorrectly, you may have damaged the controller.

All in the TMs(which are free to download on this site and on several others).

 

[wsucougarx]

I had the same issue. Here's how I troubleshooted her.
http://www.steelsoldiers.com/showth...r-s-M925A1-Acquisition-and-Build-Thread/page3