Ford Historic (OBD I) Diagnostics

Perform the “Read KOEO Codes” on page 6-7 to retrieve the DTC(s) set during wiggle test.

After making all repairs, perform “Erase Codes” on page 6-13 to clear the memory.

Output Switch Test (EEC-IV Vehicles)

The Output Sw (Switch) Test, also known as the Output State Check, is used to check the operation of the computer-controlled relays and solenoids on EEC-IV vehicles. The user can troubleshoot circuits using a voltmeter to measure voltage at the relays and solenoids in both energized and non-energized conditions. Record all measurments for reference.

Fuel injectors are NOT energized during this test.

On vehicles equipped with Integrated vehicle speed control (IVSC), failure to disconnect the vacuum supply hose from the speed control servo energizes the speed control solenoids.

From the On Demand Test Menu:

1.Select Output Sw Test.

•Use the UP or DOWN

6 arrow keys until Output Sw Test is highlighted.

•Press ENTER.

On Demand Test Menu

WiggleTest

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

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Image 144
Actron CP9190 manual Output Switch Test EEC-IV Vehicles, From the On Demand Test Menu Select Output Sw Test