Filter
Top Products
Ford Historic Self-Test Routines
6 – 10 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
6
After pressing to continue, the scan tool prompts the PCM for the Cyl-
inder ID. The PCM has 15 seconds to respond. If no ID was received, the tool
prompts the user to try again.
Once the ID is received, a Read KOER Self-Test begin. Follow all user prompts:
❒ Work Steering Wheel
❒ Pump Brake Pedal & Cycle OD (overdrive) Cancel Switch.
✓ Observe Screen for Prompt to Perform the next action.
❒ Quickly Press And Release Throttle. One Time Only!
If no DTC is present, continue with the
paragraph following the note below. If
any DTC(s) are present, the
Cyl Bal-
ance Test
stops and the tool displays the
screen to the right.
Select YES to review the DTC(s), then turn engine off. Record them and make
repairs before repeating the
Cyl Balance Test
.
In the next step, Do Not
touch any vehi-
cle or tool keys while the test is running.
Allow engine to idle. Engine speed may
drop or become uneven — this is normal.
With no DTCs present, the tool prompts
the user to depress the Throttle Halfway
and release within the next 1.5 minutes.
Press
to continue. Do not move
the throttle.
If the throttle was moved, the tool displays an error message indicating that the
test failed due to throttle movement. It prompts the user to retest the vehicle or
return to the Ford Function List.
✓ Noise from the Throttle Position Sensor may cause the test to abort even
though the throttle was not moved.
If the engine operates properly, the
screen to the right displays. Press
to continue.
If a problem exists with one or more cyl-
inders, the tool displays a list of failed cyl-
inder(s). Press
to continue.
Refer to the applicable vehicle service
manual for cylinder numbering
sequence. Cylinder failure may be
caused by faulty injectors, sparks plugs, or wiring.