CanOBD2&1 Scan Tool - Sears

Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOEO TEST
� If no Continuous Memory codes are
present in the vehicle's computer
memory, the CanOBD2&1 Scan
Tool will display a "PASS" code
(code 11 or 111).
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.
10. If more than one code was retrieved, press DTC SCROLL
button, 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. Use the
and buttons, as necessary, to view the additional
information.
11. Disconnect the CanOBD2&1 Scan Tool from the vehicle and turn
the ignition key OFF.
12. To prolong battery life, the CanOBD2&1 Scan Tool automatically
shuts "Off" after approximately three minutes of no button activity.
The DTCs retrieved will remain in the CanOBD2&1 Scan Tool's
memory, and may be viewed at any time. If the CanOBD2&1 Scan
Tool's batteries are removed, or if the CanOBD2&1 Scan Tool is relinked
to a vehicle to retrieve codes, any prior codes in its memory
are automatically cleared.
� See VIEWING DTCs IN THE CANOBD2&1 SCAN TOOL’S
MEMORY on page 13 to view DTCs stored in the CanOBD2&1
Scan Tool's memory.
13. Follow the testing and repair procedures outlined in the vehicle's
service repair manual to correct "hard" DTCs. Codes should be
addressed and eliminated in the order they were received, erasing
(see ERASING DTCs (OBD I SYSTEMS) on page 112) and retesting
after each repair is done to be sure the fault was eliminated.
IMPORTANT: DO NOT service "Continuous Memory" codes at
this time. Before "Continuous Memory" codes can be serviced,
both the KOEO and the KOER Self-Tests must pass (a PASS
code 11 or 111 is obtained). After both of these tests have
passed, erase the vehicle's computer memory (see ERASING
DTCs (OBD I SYSTEMS) on page 112), take the vehicle for a
short drive, then repeat the KOEO Self-Test. If any Continuous
Memory faults are present, service them all this time. Consult
the vehicle's service repair manual for servicing Continuous
Memory Fault Codes.
The green, yellow and red LEDs are used (with the LCD
display) as visual aids to make it easier to determine engine
system conditions. See SERVICING DTCs - OBD I on page
110 for information on interpreting LEDs and servicing DTCs.
82 CanOBD2&1