ABS Troubleshooting for Trucks, Trailers, and Buses http://www.abstroubleshooting.com/news.xml How to identify and resolve Antilock Braking System (ABS) faults on Trucks, Trailers and Buses. This comprehensive and free guide covers ABS systems manufactured by Wabco, Haldex and Knorr-Bremse. en-us ABS Warning Lamp Operation on Trucks, and Trailers The purpose of this article is first, to enable the reader to correctly identify which ABS warning lamp sequence is fitted to their truck or trailer, and second, to explain what simple steps should be taken to verify whether the operation of the ABS warning lamp is normal, or, whether a potential fault, or faults, have been detected in the ABS system. http://www.abstroubleshooting.com/abs-warning-lamp.html How the ISO 7638 lead works Drakefield's Barry Craven provides a full explanation of the ISO 7638 lead, and its role in connecting a truck and trailer. http://www.abstroubleshooting.com/iso-7638-lead.html