6
Brake-Link™ Meritor WABCO ABS Application
Chapter
1
• Getting Started
Connecting Brake-Link™ Components
Brake-Link™ interfaces with the vehicle’s ECU(s) via:
• The 6-pin or 9-pin Deutsch connector, typically located under the dash,
beside the driver’s seat or near the trailer’s brake ECU.
or
• The J560 power line connector on the outside of the tractor or trailer.
Determining which connector (and adapter) to use with this application depends
on:
• Whether the tractor is connected to the trailer.
• Whether the trailer ECU supports
Enhanced Power Line Carrier (PLC)
Mode
.
?
Do you know what Enhanced PLC Mode is?
Older brake ECUs transmit diagnostic information over the J1708 Bus
only
—accessing both tractor and trailer brake ECUs requires independent
connections. Newer ECUs offer
Enhanced PLC Mode
—they can send
diagnostic information over the power line. If the tractor and trailer are con-
nected, access both ECUs via a single connection. See “Selecting a
Protocol”, on page 16, for a bus diagram and more information.
