If you understand how the ABS system works on Tractor Trailer units it makes it a lot easier to find and fix faults.

**I mentioned in the video that I thought the blink codes were the same from bendix to wabco, they are not the same. The links below will give you the proper blink codes for each system**

Meritor Wabco Blink Code Diagnostic guide
http://www.meritorwabco.com/MeritorWA...

Blink codes for bendix, meritor wabco and haldex
http://ipatools.com/media/Manuals/ABS...

Trailer Teck light and brake tester
http://redtech.ca/brochures/brochure_...

Here is a good resource on how the air brake system works
http://www.freeed.net/sweethaven/Mec...

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I use Amsoil Synthetic Lubricants in all my equipment

http://www.amsoil.com/index.aspx?zo=1...

If you click the link it really helps this channel out, plus you get a good deal on a quality product

Disclaimer: This video is for information only, do not attempt any repairs unless you are properly trained and competent.