Equus 3140 - Scan Tool CanOBD2&1 Kit - Manual (Page 78)

76 CanOBD2&1
E
Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOER TEST
Key on Engine Running (KOER) Self-Test
IMPORTANT: The KOEO Self-Test (page 70) must be per-
formed first, and a "pass code" (code 11 or 111) must be
obtained before performing the KOER Self-Test; otherwise,
results of the KOER Self-Test may be invalid.
Ignition timing and timing advance must be operating proper-
ly in order for the KOER Self-Test results to be considered
valid. Perform an Engine Timing check (page 73) before per-
forming the KOER Self-Test.
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. Read and follow Safety Precautions on page 3
before performing this test.
■ The vehicle must pass the Engine Timing Check (page 73) before
performing this test.
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 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 dis-
plays.
Use the and buttons, as
necessary, to make menu selec-
tions.
3. From the Ford EEC-IV System menu, highlight KOER 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.
5. Turn off all vehicle accessories, then turn ignition key OFF and wait
for the on screen prompt. If you wish to exit the KOER test at this
time, press the ENTER/LD button.