Using the Scan Tool
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
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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 the status of all
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, and turn
the ignition "On.” (If the scan tool is
already connected and linked to the
vehicle's computer, proceed directly to
step 3. If not, continue to step 2.)
2. Perform the Code Retrieval procedure
as described on page 33.
To erase OBD2 DTCs: Wait until
the codes are displayed on the scan
tool’s LCD and then proceed to step
3.
To erase OEM enhanced DTCs or ABS DTC’s: Press the
SYSTEM MENU
button to display the System Menu. Use
the UP
and DOWN buttons, as necessary, to highlight
OEM Enhanced or ABS, then press the ENTER
button.
Perform the appropriate Code Retrieval (see page 39 for more
information) and then proceed to step 3.
3. Press and release the ERASE
button. A confirmation message shows
on the LCD display.
If you are sure you want to proceed,
use the UP
and DOWN
buttons, as necessary, to highlight
YES, then press the ENTER
button to continue.
- If you do not want to proceed, use the UP
and DOWN
buttons, as necessary, to highlight NO, then press the
ENTER
button to exit the erase function.
4. If you chose to erase DTCs, a progress screen displays while the
erase function is in progress.
If the erase was successful, a confir-
mation message shows on the display.
Press the POWER/LINK
button to re-link the Tool to the vehicle.