Econoline E350 1 Ton V8-5.4L Prop SOHC VIN Z (1998)
The Speed Control Deactivation Switch (SCDS) involved in Safety Recall 09S09 and the revised SCDS are illustrated (See Figure 1).
Note that the revised SCDS has a different electrical connector An adapter jumper harness (which is included in the parts kit) is required when replacing
the old SCDS with the revised SCDS
SCDS Location
In most vehicles involved in this recall, the SCDS is located on the master cylinder. In 1992-1993 E-Series vehicles, the SCDS is usually located on the
junction block or brake proportioning valve on the left frame rail under the driver's seat. In 1993 F-Series vehicles, the SCDS is usually located on the
junction block or brake proportioning valve on the left frame rail below the master cylinder To verify, just follow the metal brake lines from the master
cylinder until the switch is found On F-53 Motorhome vehicles, if the SCDS is not located on the master cylinder, it maybe located in a brake line
junction block approximately 457 mm (18 in) below the master cylinder It may be necessary to reposition wiring harnesses and/or remove add-on
equipment in order to locate the switch.
SCDS INSPECTION PROCEDURE
NOTE:
For E-Series vehicles, there is a possibility that the vehicle was manufactured without a SCDS If unable to locate a SCDS after checking on all the
brake lines, no further action is required, release the vehicle
NOTE:
On 1992-1993 E-Series and 1993 F-Series vehicles, it may be necessary to lift the vehicle to gain access to the SCDS On Windstar vehicles, the air
cleaner housing must be separated in the middle to gain access to the SCDS
