Ford Historic Self-Test Routines

Either a KOEO or KOER Wiggle Test can

Select

Wiggle

Test

be run. If the vehicle problem occurs

` 1)KOEO

Wiggle

Test

while driving, the KOER Wiggle Test is

recommended. After selecting, press

2)KOER

Wiggle

Test

ENTER.

 

 

~

Follow the tool’s instructions.

1)Set Parking Brake.

2)Put Transmission In Park Or Neutral.

3)Turn A/C Off.

4)Turn Ign Key Off. Wait 10 Seconds.

5)KOEO: Turn Key On. Engine Off. Do Not Start Engine.

6)KOER: Turn Key On. Engine On and let Idle.

Instructions are available for viewing.

View

Instructions

 

The default is YES. If NO is selected, the

 

For

Wiggle Test?

 

test will begin to initialize.

 

If YES is selected, the following

<YES>

NO

~

 

 

 

instructions will appear.

 

 

 

Gently tap and shake the sensor.

 

 

 

Wiggle the sensor connectors.

 

 

 

Twist and shake the wiring between the sensor and the PCM.

 

Press ENTER to continue. The next instruction states: Beeper sounds and

6

message displayed while fault exists. Press ENTER to Test and the test will begin to initialize.

After the 10-second initialization period, the tool is ready for the Wiggle Test. Locate the suspect sensor or circuit according to the above instructions.

If a fault is detected, the tool will beep and displays a FAULT PRESENT message. A DTC(s) will be stored in the PCM and in the tool. When done, press FUNC to return to the Ford Function List.

Wiggle Test Running

Status:

*** Circuit OK ***

~

Wiggle Test Running

Status:

***Fault Present***

~

Perform the “Read KOEO Codes” on page 6-1 to retrieve the DTC(s) set during wiggle test.

After making all repairs, perform “Erase Codes” on page 6-7 to clear the memory.

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Actron 9640 Select Wiggle Test, ` 1KOEO Wiggle Test, For Wiggle Test?, Wiggle Test Running Status Circuit OK Fault Present

9640 specifications

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