Actron Professional Enhanced Scan Tool 9640A, User Manual

Page: 68 / 126

Ford Historic Self-Test Routines
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6
Instructions are available for viewing.
The default is YES. If NO is selected, the
test will begin to initialize.
If YES is selected, the following 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 mes-
sage 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 mes-
sage. A DTC(s) will be stored in the PCM
and in the tool. When done, press
FUNC
to return to the Ford Function List.
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 6-6 to clear the mem-
ory.
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 mea-
sure voltage at the relays and solenoids in both energized and non-energized
conditions. All measurements should be recorded for reference.
✓
Fuel injectors are NOT energized during this test.
✓
On vehicles equipped with Integrated Vehicle Speed Control (IVSC), fail-
ure to disconnect the vacuum supply hose from the Speed Control Servo
energizes the Speed Control Solenoids.
Select Output Sw Test from the Ford
Function List and press
ENTER
.
Observe the screens and follow the
instructions.
1) Set Parking Brake.
2) Put Transmission In Park Or Neutral.
3) Turn A/C Off.
4) Start Engine — Let Idle Until Hot.
View Instructions
For Wiggle Test?
<YES> NO ~
Wiggle Test Running
Status:
*** Circuit OK ***
~
Wiggle Test Running
Status:
***Fault Present***
~
Ford Function List |
5)Wiggle test ]
` 6)Output Sw Test [
7)DCL Data ~