Ford Historic Diagnostics • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
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.
Select Output Sw Test from the Ford
Function List and press (17(5.
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.
5) Turn Ign Key Off.
6) Wait 10 Seconds. Turn Key On-Engine Off. Do not Start Engine.
!
CAUTION
The test screen indicates the time
5
remaining. Do not touch vehicle or tool
keys during this time until the next screen
appears.
Depress the accelerator pedal fully to turn
ON relays and solenoids. Do the same to
turn them OFF. This can be repeated as
many times as required to locate the fault.
When done, turn key Off and press %$&.
twice to return to the Ford Function List.
DCL DATA FUNCTIONS (EEC-IV VEHICLES)
The DCL Data (Data Communication Link) functions allows engine data
transmitted from EEC-IV vehicles beginning in 1990 to be viewed. This function
allows viewing of data parameters in real time to pinpoint problems when they
occur.
Select DCL Data from the Ford Function
List and press (17(5.
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Avoid Cooling Fan! It May Turn On During Test.
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