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Ford Historic (OBD I) Diagnostics
6
✓During testing, it is VERY IMPORTANT that each required step be
performed when prompted by the Scan Tool. Failure to perform
these steps may set DTCs in the PCM. Be sure to observe the
Scan Tool display for indications to perform these steps.
✓Do not touch the throttle pedal during testing. The user is reminded
of this by the Scan Tool.
✓Once the codes have been read by the Scan Tool, it instructs the
user to turn the ignition key off:
4. View and write down DTCs.
•Use the
UP
or
DOWN
arrow
keys.
✓ENG indicates that DTC is from the
engine or powertrain computer.
5. Return to Diagnostic Codes Menu.
•Press BACK.
On Demand Test Menu
All items marked with “-” are covered either in section 3 or 4.
These items are not covered in this section.
❒On Demand Test Menu
❒Wiggle Test
❒Output Switch Test
❒Cyl Balance Test
❒STAR Test Mode
– Review Data
–Print Data
–Tool Setup
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ENG
SCVAC Failure: Spe ed
Control Vacuum
Circuit Failure
IVSC KOER
37
IMPORTANT