Equus 3040 - OBD2 ScanTool - Manual (Page 27)

Using the Scan Tool
CODE RETRIEVAL PROCEDURE
OBD2 25
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 location 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
Preparation for Testing on page 24 for details.
ALWAYS observe safety precautions whenever working on a
vehicle. See Safety Precautions on page 2 for more information.
1.
Turn the ignition off.
2.
Locate the vehicle's 16-pin Data Link
Connector (DLC). See page 3 for
connector location.
3.
Connect the Scan Tool’s 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 Scan
Tool. Refer to your vehicle's service
manual to properly check the
vehicle's DLC.
„ After the Scan Tool’s test connector is properly connected to the
vehicle's DLC, the Vehicle icon
should display to confirm a
good power connection.
4.
Turn the ignition on. DO NOT start the
engine.
5.
The Scan Tool will automatically turn ON.
„ If the unit does not power on
automatically when connected to the
vehicle’s DLC connector, it usually
indicates there is no power present
at the vehicle’s DLC connector. Check your fuse panel and
replace any burned-out fuses.
„ If replacing the fuse(s) does not correct the problem, consult
your vehicle’s repair manual to identify the proper computer
(PCM) fuse/circuit, and perform any necessary repairs before
proceeding.