Ford Historic (OBD I) Diagnostics
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6
IVSC-Speed Ctrl (EEC-IV Vehicles)
✓The IVSC-Speed Ctrl (Integrated Vehicle Speed Control) is Ford’s
computerized cruise control system on EEC-IV vehicles. It is
controlled by the PCM and contains a dedicated network of
sensors, switches, and actuators. Both KOEO and KOER Codes
exist for this test. The Scan Tool provides the ability to diagnose
problems by reading DTCs.
Reading IVSC KOEO Codes
From the Diagnostic Codes Menu:
1. Select IVSC Speed Ctrl.
•Use the
UP
or
DOWN
arrow
keys until IVSC Speed Ctrl is
highlighted.
•Press
ENTER.
2. Select Read KOEO Codes.
•Use the
UP
or
DOWN
arrow
keys until Read KOEO Codes
is highlighted.
•Press
ENTER.
3. Perform the following:
1)Set parking brake.
2) Transmission in park (P) or neutral (N).
3) Turn A/C off.
4) Start engine and let idle until hot.
5) Turn ignition key off.
6) Wait 10 seconds. Turn key on engine off. Do not start engine.
Read KOEO Codes
Read KOER Codes
Erase Codes
IVSC Spe ed Ctrl
Review Data
Print Data
Code Lookup
Diagnostic Codes Menu
IVSC Spe ed Ctrl
Read KOEO Codes
Read KOER Codes
Select IVSC Test
Read KOEO Codes