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Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOEO TEST
34
BE SURE to perform the added procedures in step 6, if
appropriate, BEFORE turning the ignition ON.
- Press ENTER
to continue.
If the Scan Tool cannot link to the vehicle’s computer after three
attempts, the message “Contact Technical Support” displays.
- Press SYSTEM MENU
to return to the Ford Menu.
- Turn the ignition off, and disconnect the Scan Tool.
- Contact Technical Support for assistance.
9. If the Scan Tool was able to link to the vehicle successfully a "Code
retrieval was successful..." message shows temporarily, followed by
any retrieved DTCs.
Most Ford EEC-IV vehicle computers up to 1991 use a two-digit
code system. From 1991 to 1995 most use a three digit code
system.
The Scan Tool will display a code
only if codes are present in the
vehicle's computer memory.
If no problems are found during the
KOEO Self-Test, the computer
sends a "PASS" code (code 11 or
111) to the Scan Tool.
If no Continuous Memory codes are
present in the vehicle's computer me-
mory, the Scan Tool displays a
"PASS" code (code 11 or 111).
The Scan Tool will display a code only
if codes are present. If no codes are
present, the message “No DTCs are
presently stored in the vehicle’s
computer” displays.
10. If more than one code was retrieved, press DTC/FF, as necessary,
to display additional codes one at a time.
In the case of long code definitions, a small arrow is shown in
the upper/lower right-hand corner of the code display area to
indicate the presence of additional information.
11. Disconnect the Scan Tool from the vehicle and turn the ignition key
OFF.
12. To prolong battery life, the Scan Tool automatically shuts "Off" after
approximately three minutes of no button activity. The DTCs
retrieved will remain in the Scan Tool's memory, and may be viewed
at any time. If the Scan Tool's batteries are removed, or if the Scan
Tool is re-linked to a vehicle to retrieve codes, any prior codes in its
memory are automatically cleared.
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