Please consult yourWarranty Guidefor complete emission warranty
information.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the On
Board Diagnostics System (OBD-II). This OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
engine/Service engine soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
engine/Service engine soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck engine/Service engine soonlight should turn off. (A
driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck engine/Service engine soonlight remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If yourCheck engine/Service engine
soonlight is on, refer to the description in theWarning lights and
chimessection of theInstrument Clusterchapter. Your vehicle may not
pass the I/M test with theCheck engine/Service engine soonlight on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a“not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
REVIEW COPY
2005 Thunderbird(tbr), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Maintenance and Specifications
205
Engine oil ..................................185
checking and adding ..............185
dipstick ....................................185
filter, specifications ........187, 209
recommendations ...................187
refill capacities ........................210
specifications ..................212–213
Exhaust fumes ..........................139
F
Fail safe cooling ........................195
Floor mats ...................................61
Fluid capacities .........................210
Fuel ............................................196
calculating fuel economy .......200
cap ...........................................198
capacity ...................................210
choosing the right fuel ...........199
comparisons with EPA fuel
economy estimates .................203
detergent in fuel .....................200
filling your vehicle with
fuel ...........................196, 198, 201
filter, specifications ........200, 209
improving fuel economy ........200
octane rating ...........199, 213–214
quality ......................................199
running out of fuel .................200
safety information relating to
automotive fuels .....................196
Fuses ..................................151–152
G
Garage Door Opener
(see Homelink wireless control
system) ........................................46Gas cap (see Fuel cap) ............198
Gas mileage
(see Fuel economy) .................200
Gauges .........................................14
H
Hazard flashers .........................150
Head restraints ...........................74
Headlamps ...................................27
aiming ........................................29
autolamp system .......................27
bulb specifications ....................31
daytime running lights .............27
flash to pass ..............................28
replacing bulbs .........................32
turning on and off ....................27
Heating
heating and air conditioning
system .......................................22
Homelink wireless control
system ..........................................46
Hood ..........................................183
I
Ignition .......................136, 213–214
Infant seats
(see Safety seats) .....................100
Inspection/maintenance (I/M)
testing ........................................205
Instrument panel
cleaning ...................................179
cluster ........................................10
lighting up panel and
interior .......................................28
REVIEW COPY
2005 Thunderbird(tbr), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Index
221
