10
OBD2
Using the Code Reader
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
The Code Reader will automatically re-link to the vehicle's
computer every 15 seconds to refresh the data being retrieved.
When data is being refreshed, a single beep will sound, and
"
rEAd
" will be shown on the LCD display for 5-6 seconds. The
Code Reader will then beep twice and return to displaying codes.
This action repeats as long as the Code Reader is in com-
munication with the vehicle's computer.
The Code Reader will display a code only if codes are present in
the vehicle's computer memory. If no codes are present, a "0" will
be displayed.
7.
If more than one code is present, press and release the
SCROLL
button,
as necessary, to display additional codes.
■
Whenever the
SCROLL
function is used to view additional codes, the Code
Reader’s communication link with the vehicle's computer disconnects. To
re-establish communication, press the
LINK
button again.
Refer to page 14 for Diagnostic Trouble Code definitions. Match the retrieved
DTC(s) with those listed. Read the associated definition(s), and see the vehicle's
service manual for further evaluation.
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
When the Code Reader’s ERASE function is used to erase the
DTCs from the vehicle's on-board computer, "Freeze Frame" data
and manufacturer-specific enhanced data are also erased.
If you plan to take the vehicle to a Service Center for repair,
DO NOT
erase the
codes from the vehicle's computer. If the codes are erased, valuable information
that might help the technician troubleshoot the problem will also be erased.
Erase DTCs from the computer's memory as follows:
When DTCs are erased from the vehicle's computer memory, the I/M
Readiness Monitor Status program resets status of all the Monitors to
a not run "flashing" condition. To set all of the Monitors to a DONE
status, an OBD 2 Drive Cycle must be performed. Refer to your
vehicle's service manual for information on how to perform an OBD 2
Drive Cycle for the vehicle under test.
1.
If not connected already, connect the Code
Reader to the vehicle's DLC. (If the Code Reader
is already connected and linked to the vehicle's
computer, proceed directly to step 4. If not,
continue to step 2.)
2.
Turn the ignition on.
DO NOT
start the engine. The
Code Reader will automatically link to the
vehicle’s computer.
E12
Summary of Contents for 3030A
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Page 32: ...Notes 30 OBD2...
