Equus 3130 - Scan Tool – OBD2 - Manual (Page 29)

OBD2 27
E
Using the Scan Tool
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
If more than one malfunction is present that causes more
than one DTC to be set, only the code with the highest pri-
ority will contain Freeze Frame data. The code designated
“01” on the Scan Tool display is referred to as the
PRIORITY code, and Freeze Frame data always refers to
this code. The priority code is also the one that has com-
manded the MIL on.
Retrieved information can be uploaded to a Personal
Computer (PC) with the use of an optional “PC Link Kit.”
(see instructions included with PC-Link program for more
information).
11. Determine engine system(s) condition by viewing the Scan Tool’s
display for any retrieved Diagnostic Trouble Codes, code defini-
tions, Freeze Frame data and Live Data, interpreting the green, yel-
low and red LEDs.
■ If DTC’s were retrieved and you are going to perform the repairs
yourself, proceed by consulting the Vehicle’s Service Repair
Manual for testing instructions, testing procedures, and flow
charts related to retrieved code(s).
■ If you plan to take the vehicle to a professional to have it serv-
iced, complete the Preliminary Vehicle Diagnosis Worksheet
on page 17 and take it together with the retrieved codes, freeze
frame data and LED information to aid in the troubleshooting
procedure.
■ To prolong battery life, the Scan Tool automatically shuts “Off”
approximately three minutes after it is disconnected from the
vehicle. The DTCs retrieved, captured Live Data Information,
Monitor Status and Freeze Frame data (if any) will remain in the
Scan Tool’s memory, and may be viewed at any time by turning
the unit “On”. If the Scan Tool’s batteries are removed, or if the
Scan Tool is re-linked to a vehicle to retrieve codes/data, any
prior codes/data in its memory are automatically cleared.
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
When the Scan Tool’s ERASE function is used to erase
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: