Ford Historic (OBD I) Diagnostics

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

6 Codes is highlighted. •Press ENTER.

Diagnostic Codes Menu

Read KOEO Codes

Read KOER Codes

Erase Codes

IVSC Speed Ctrl Review Data Print Data Code Lookup

Select IVSC Test

￿Read KOEO Codes Read KOER Codes

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.

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Actron CP9190 manual IVSC-Speed Ctrl EEC-IV Vehicles, Reading Ivsc Koeo Codes, Select Read Koeo Codes. Use the UP or Down