Equus 3040 - OBD2 ScanTool - Manual (Page 32)

Using the Scan Tool
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
30 OBD2
12.
Determine engine system(s) condition by viewing the Scan Tool’s
display for any retrieved Diagnostic Trouble Codes, code definitions,
Freeze Frame data and Live Data, interpreting the green, yellow 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).
„ 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
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 OBD2 Drive Cycle must be
performed. Refer to your vehicle's service manual for
information on how to perform an OBD2 Drive Cycle for the
vehicle under test.
1.
If not connected already, connect the
Scan Tool to the vehicle's DLC. (If the
Scan Tool 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 Scan Tool will automatically
link to the vehicle’s computer.
3.
Once codes have been retrieved, press
and release the Car Reader’s ERASE
E button. A confirmation message
shows on the display.