Information Bus: Application and ID

A simple means of checking whether the control modules are operative and allow diagnostics communication (column B) is given

for each control module (column A) in the table below.

If the control module is not operative, check whether it is supplied with current and grounded (columns C-E).

Then check whether the control module is connected to the bus (column F) or the data link connector (column G).


NOTE Some control modules also have other supplies of current and ground connections but these are not necessary for diagnostics communication.