Ford Historic (OBD I) Diagnostics

Wiggle Test (EEC-IV Vehicles)

The Wiggle Test, often referred to as the Continuous Monitor Test, is used to locate intermittent electrical faults on EEC-IV vehicles. When the test is activated, the Scan Tool beeps and displays a message when a fault is present. If the problem is fixed or goes away, the tone and message goes away. Refer to the applicable service manual for circuits that can be tested.

If the Alert was turned off in the Tool Setup menu, it will be automatically activated for the Wiggle Test. Once the Wiggle Test is complete, the alert returns to its previous setting.

From the On Demand Test Menu:

1.Select Wiggle Test.

•Use the UP or DOWN arrow keys until Wiggle Test is highlighted.

•Press ENTER.

Either a KOEO or KOER Wiggle

6

Test can be run. If the vehicle

problem occurs while driving, the

 

KOER Wiggle Test is

 

recommended.

 

2.

After making a selection.

 

 

•Press ENTER.

 

3.

Perform the following:

On Demand Test Menu

￿Wiggle Test Output Sw Test Cyl Balance Test STAR Test Mode Review Data Print Data Tool Setup

Select Wiggle Test

￿KOEO Wiggle Test KOER Wiggle Test

1)Set parking brake.

2)Put Transmission in park (P) or neutral (N).

3)Turn A/C off.

4)Turn ignition key off. Wait 10 seconds.

5)KOEO: Turn key on engine off. Do not start engine.

6)KOER: Turn key on engine running and let Idle.

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Actron CP9190 manual Wiggle Test EEC-IV Vehicles, From the On Demand Test Menu Select Wiggle Test, After making a selection