![]() ![]() ![]() J1708 refers to the SAE standard for the physical part of the datalink, such as wiring and electronic components. The J1587 datalink is a low-speed datalink that communicates information between the electronic control units on the vehicle. This will be a two-part article, this month we will look at the J1587/J1708 Datalink. Most vehicles with multiplexing will have two datalinks in common, the J1587/1708 datalink and the J1939 datalink, which are the primary datalinks for chassis and powertrain control. The multiplexing system serves three main functions: It transmits multiple electronic messages through the same wire at the same time it performs tasks and monitors components simultaneously it uses electronic control units to operate the system, interpreting different messages being transmitted on the same wire.
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