FORD 2004 F-150 v.3 - Manual (Page 11)

Luxury instrument cluster
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, have the
respective system inspected immediately.
Service engine soon: The Service
engine soon indicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb. Solid illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer to On board
diagnostics (OBD-II) in the Maintenance and Specifications chapter. If
the light is blinking, engine misfire is occurring which could damage your
catalytic converter. Drive in a moderate fashion (avoid heavy acceleration
and deceleration) and have your vehicle serviced immediately.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Electronic throttle control
(if equipped): Illuminates when
the engine has defaulted to a
’limp-home’ operation. Report the
fault to a dealer at the earliest opportunity.
On vehicles equipped with a message center, “ENGINE FAILSAFE
MODE” will be displayed, refer to Message Center in the Driver
Controls chapter.
2004 F150 (f12)
Owners Guide (post-2002-fmt)
USA English (fus)
Instrument Cluster
11