Equus 3140 - Scan Tool CanOBD2&1 Kit - Manual (Page 72)

70 CanOBD2&1
E
Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOEO TEST
As described previously, some tests are designed to detect problems
only when the vehicle is in normal operation. Some tests are designed
to activate components and detect problems only with the Key On and
Engine Off. Other tests are designed to activate components and test
their operation only with the Key On and Engine Running.
Do not take
short cuts. If you fail to perform a test, or you perform a test out of
sequence, you might miss a problem that is only detected during that
part of the test.
Key On Engine Off (KOEO) Test
During the KOEO Self-Test, two groups of codes are retrieved by the
CanOBD2&1 Scan Tool.
■ The first group of codes retrieved by the CanOBD2&1 Scan Tool are
called "KOEO codes". A "KOEO" icon will show in the upper right cor-
ner of the display to indicate that the code retrieved is a "KOEO" code.
■ The second group of codes are called "Continuous Memory" codes.
A "CM" icon will show in the upper right corner of the display to indi-
cate that the code retrieved is a "Continuous Memory" code.
Check your vehicle thoroughly before performing any test.
See Before You Begin on page 18 for details.
ALWAYS observe safety precautions whenever working on a
vehicle. See Safety Precautions on page 3 for more infor-
mation.
1. Locate the vehicle's Data Link Connector (DLC). See Data Link
Connector (DLC) on page 68 for connector location.
Some DLCs have a plastic cover that must be removed before
connecting the CanOBD2&1 Scan Tool's cable connector.
2. Connect the CanOBD2&1 Scan Tool
cable (with the Ford Connector Cable
Adaptor attached) to the CanOBD2&1
Scan Tool, then connect the adaptor to
the vehicle's DLC. Press the POWER/
LINK button to turn the
CanOBD2&1 Scan Tool ON, then press
the ENTER/LD button to continue.
■ The Ford EEC-IV System menu displays.
Use the and buttons, as
necessary, to make menu selec-
tions.
3. From the Ford EEC-IV System menu, highlight KOEO Test, then
press the ENTER/LD button.
4. When prompted by the CanOBD2&1 Scan Tool, start and warm-up
engine to normal operating temperature. Press the ENTER/LD
button to continue.