5-2
NGS-EEC Systems
LESSON 5
NOTES
DIAGNOSTIC LINKS
A vehicle’s computer reads information from sensors and
actuators and then uses this information to control electrical
functions in the engine and other parts of the vehicle. NGS
allows you to link with the vehicle’s computer to view
information as it processes.
There are different types of diagnostic links available when
servicing a vehicle.
NGS currently supports the following links:
l
DCL
l
SCP
l
ISO9l41
l
STI/STO
l
DDL
DIAGNOSTIC DATA LINK—MCN
DIAGNOSTICS
In version 10.0 of the NGS software, the first thing that appears
when you select Diagnostic Data Link is a test of the Multiplex
Communications Network (MCN) of any vehicle so equipped.
Since this test does not apply to EEC-IV vehicles, press
CANCEL to by-pass this test.
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