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Information Engine Management Pin Data
9.4 Engine Management Pin Data
An electronic control module (ECM) connector diagram with pin assignments and test conditions
are contained in this section. Double tap the
Engine Management Pin Data icon to view the
information ( Figure 9-7 ).
1— View Tabs
2— Information Tabs
3— Component Selection
Figure 9-7
Sample ECM Pin Data screen
A table in the lower portion of the screen displays the available pin data. Several shortcuts are
available from the table:
•
If the name of the component in the Component/Circuit Description column is underlined,
selecting the name with the stylus opens the component testing article for that item. See
“Engine Management Component Testing” on page 115 for additional information.
•
If a number appears in the Waveform column, a “known good” sample waveform is available
for viewing. Select the number with the stylus and the waveform opens in a separate window.
Select anywhere in the waveform window to close it.
9.4.1 View Tabs
The View Tabs determine which perspective of the ECM connector diagram displays. Two choices
are available:
•
Terminal Side—shows the connector as if it were disconnected from the ECM and you are
looking into the face (open terminal side) of the connector.
•
Wire Side—shows the connector as if it were connected to the ECM and you are looking at the
wiring harness side of the connector. Commonly referred to as the “backprobing” view.
Use your finger or the stylus to select a view tab.