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Step 2: Connect the Cable
ABS / Air Bag 2004 User Guide
Step 2: Connect the Cable
The method used to connect the NGIS tool to a vehi-
cle’s electronic control unit (ECU) depends on the
vehicle’s configuration as follows:
•
A vehicle equipped with an On Board Diagnostics Two
(OBD II) vehicle management system supplies both com-
munication and 12-volt power through a standardized
J-1962 data link connection (DLC).
• A vehicle not equipped with an OBD II system supplies
communication through a DLC connection and supplies
12-volt power through the cigarette lighter receptacle or
a connection to the battery.
Note: Both connections described above charge the NGIS
tool’s battery while connected.
OBD II Vehicle Cable Connection
This type of connection generally requires the System
Smart 25-pin cable (3305-73) and a System Smart
Insert (SSI).
Note: For a description of the cables, refer to “Cables” on
page 3
.
To connect the System Smart 25-pin cable, follow these
steps:
Figure 2.7: SSI and System Smart 25-pin Cable
1 Locate the required SSI and insert it into the port on the
top of the cable’s 25-pin connector.
Figure 2.8: System Smart 25-pin Cable Connection to NGIS Tool
2 Connect the cable’s 25-pin connector to the DB25 port on
the top of the NGIS tool. Finger tighten the connecting
screws.
Note: Extension cable (3305-71) can be used between
the NGIS tool and the System Smart 25-pin cable. Refer
to “Extension Cable (3305-71)
” on page 3.
Figure 2.9: System Smart 25-pin Cable Connection to Vehicle’s DLC
3 Connect the cables’s J-1962 (16 pin) connector into the
vehicle’s J-1962 DLC (16 pin), located under the vehicle
dash.
4 Continue with the next section, “Step 3: Select the Diag-
nostic Function” on page 18.