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Ford Historic Self-Test Routines
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 tool provides the ability to
diagnose problems by reading DTCs.
Select IVSC-Speed Ctrl from the Ford
Function List and press ENTER.
The sub-menu Select IVSC Test is
displayed.
Reading IVSC KOEO Codes
Select Read KOEO Codes from the sub-menu and press ENTER. Follow the
instructions on the tool screen. These instructions will prompt the user to:
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Turn Key On-Engine Off. Do Not Start Engine.
!
CAUTION
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 DTC(s) in the PCM.
During this test, the tool prompts the user to perform the following steps:
Press speed control ON button.
Press speed control OFF, RESUME, COAST, & ACCEL buttons.
Tap brake and clutch pedals.
Once the codes have been read by the
scan tool, turn the ignition key off. Press
ENTER to view the KOEO failures.
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Avoid Cooling Fan! It May Turn On During Test.
Ford Function List ?
8)Cyl Balance Test ]
` 9)IVSC-Speed Ctrl
10 )STAR Test Mode ~
Select IVSC Test
` 1)Read KOEO Codes
2)Read KOER Codes
IVSC KOEO Code Read
Turn Ign Key Off.
Press ENTER To Cont~
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