Equus 3140 - Scan Tool CanOBD2&1 Kit - Manual (Page 26)

24 CanOBD2&1
E
OBD2 Systems
CODE RETRIEVAL PROCEDURE
CODE RETRIEVAL PROCEDURE
Never replace a part based only on the DTC definition.
Each DTC has a set of testing procedures, instructions
and flow charts that must be followed to confirm the loca-
tion of the problem. This information is found in the vehicle's
service manual. Always refer to the vehicle's service manual
for detailed testing instructions.
Check your vehicle thoroughly before performing
any test. See Before You Begin on page 18 for
details.
ALWAYS observe safety precautions whenever working on a
vehicle. See Safety Precautions on page 3 for more infor-
mation.
1. Turn the ignition OFF.
2. Locate the vehicle's 16-pin Data Link
Connector (DLC). See page 21 for con-
nector location.
Some DLCs have a plastic cover
that must be removed before con-
necting the CanOBD2&1 Scan
Tool cable connector.
If the CanOBD2&1 Scan Tool is
ON, turn it OFF by pressing the
POWER/LINK
button
BEFORE connecting the
CanOBD2&1 Scan Tool to the DLC.
3. Connect the OBD II Cable to the CanOBD2&1 Scan Tool, then con-
nect to the vehicle’s DLC.
■ If you have problems connecting the cable connector to the DLC,
rotate the connector 180° and try again.
■ If you still have problems, check the
pins on the CanOBD2&1 Scan Tool’s
DLC and on the vehicle’s DLC.
4. When the CanOBD2&1 Scan Tool’s
cable connector is properly connected
to the vehicle’s DLC, the unit automati-
cally turns ON, and the display shows
instructions for linking to the vehicle’s
on-board computer.
Retrieving and using Diagnostic Trouble Codes (DTCs) for
troubleshooting vehicle operation is only one part of an
overall diagnostic strategy.