Equus 3110 - CanOBD2 Diagnostic Tool - Manual (Page 37)

CAN OBD2 35
E
Using the Code Reader
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 33 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 5 for con-
nector location.
Some DLCs have a plastic cover
that must be removed before con-
necting the Code Reader cable
connector.
If the Code Reader is ON, turn it
OFF by pressing the POWER/LINK
button BEFORE connecting
the Code Reader to the DLC.
3. Connect the Code Reader cable connector to the vehicle’s DLC.
The cable connector is keyed and will only fit one way.
■ 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 DLC on the vehicle and on
the Code Reader. Refer to your vehicle’s service manual to prop-
erly check the vehicle’s DLC.
4. When the Code Reader’s cable connec-
tor is properly connected to the vehicle’s
DLC, the unit automatically turns ON,
and the LCD 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.