NHTSA Office of Defects Investigation
Engineering Analysis EA04-006: ACCELERATOR PEDAL SENSOR (ETC)
- Closed
NHTSA's Office of Defects Investigation opened Engineering Analysis EA04-006 on February 23, 2004 and closed it on February 10, 2005. NHTSA's investigations file lists 6 Ford models for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- EA04-006 (also written EA04006)
- Investigation type
- Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
- Status
- Closed February 10, 2005
- Opened
- Closed
- Vehicle or equipment manufacturer
- Ford Motor Company
- Components
- Vehicle Speed Control; Vehicle Speed Control — Accelerator Pedal; Vehicle Speed Control — Cables; Vehicle Speed Control — Linkages
- Vehicles and equipment
- 6 Ford models, including the Excursion and F-250 SD
A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA04-006.
try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.
FAILURE COUNTS FROM ODI?S ANALYSIS ARE STATED ABOVE; SEE THE ADDITIONAL PROBLEM EXPERIENCE DISCUSSION IN THE SUMMARY REPORT.FORD DATA CONTAINED DUPLICATIVE REPORTS FOR 4 ODI COMPLAINTS AND 1 CRASH.THREE CRASHES WERE ALLEGEDLY DUE TO INTERMITTENT OPERATION OF THE ELECTRONIC THROTTLE CONTROL (ETC) PEDAL, ONE CRASH OCCURRED WHEN AN ETC DISABLED VEHICLE WAS STRUCK BY ANOTHER MOTORIST, ONE REPORT CONTAINED NO DETAIL.THE INJURIES WERE MINOR.AN ISSUE INVOLVING FIXED ETC PEDALS WAS INVESTIGATED ALSO, HOWEVER FAILURE REPORTS AND POPULATIONS ARE NOT SHOWN ABOVE; SEE SUMMARY REPORT FOR DETAIL.ALTHOUGH FORD HAS USED ETC BASED THROTTLE CONTROL SYSTEMS FOR MANY YEARS, THE PAP FEATURE WAS NEW FOR MY 2002.
THE SUBJECT ETC SENSOR PRODUCES TWO OUTPUT SIGNALS WHICH THE ENGINE MANAGEMENT SYSTEM (EMS) UTILIZES TO:1) DETERMINE FUELING REQUIREMENTS; AND 2) PERFORM SENSOR DIAGNOSTICS.ONE SIGNAL IS LINEARLY PROPORTIONAL TO THROTTLE PEDAL POSITION; THE SECOND IS A DIGITAL SIGNAL.BY DESIGN, THE DETECTION OF A SENSOR FAULT RESULTS IN THE ENGINE RETURNING TO (OR REMAINING AT) THE IDLE STATE.FORD IDENTIFIED A DEFECT IN THE PAP ETC SENSOR WHICH PREMATURELY AFFECTED AN OUTPUT SIGNAL; THE MIGRATION OF INTERNAL SENSOR LUBRICANT CAUSED A LOSS OF PROPORTIONAL SIGNAL.THE FAILURE MECHANISM IS PROGRESSIVE AND AS THE SENSOR DETERIORATES, THE EMS WILL DETECT A FAULT, STORE A FAULT CODE, ILLUMINATE A WARNING LAMP, AND THE ENGINE MAY REMAIN AT/RETURN TO IDLE.IN THE EARLY STAGES, NORMAL OPERATION CAN BE REGAINED BY PEDAL RE-APPLICATION.THE FAILURE PROGRESSES UNTIL THE ENGINE REMAINS AT IDLE.THE ENGINE DOES NOT STALL, POWER ASSISTED STEERING AND BRAKING SYSTEMS ARE UNAFFECTED. FORD CORRECTED THE ETC SENSOR DEFECT AND CONDUCTED FIELD SERVICE ACTION (FSA) 03B03 TO REPLACE ETC PEDALS, ADDRESSING 50% OF VEHICLES.AT AGENCY REQUEST TO IMPROVE COMPLETION RATE, FORD EXTENDED FSA 03B03 FOR 6 MONTHS.BASED ON ODI'S ANALYSIS OF AVAILABLE DATA, FORD'S ACTION HAS APPROPRIATELY RESOLVED THE ETC SENSOR PROPLEM IN THE SUBJECT VEHICLES.THE CLOSING OF THE INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST, AND SHOULD NOT BE CONSIDERED AS HAVING ANY PRECEDENTIAL VALUE OR EFFECT BINDING THE AGENCY IN FUTURE DEFECT INVESTIGATIONS. SEE THE ATTACHED SUMMARY REPORT FOR ADDITIONAL INFORMATION.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA04-006. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
What an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Ford VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for EA04-006
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.