Triumph 2012 Tiger 800 Service Manual page 191

Glossary of Terms
The following terms and abbreviations will be found in
this section. Below is given a brief explanation of what
some of the more common terms and abbreviations
mean.
Air temperature
The air temperature in the air box and intake system.
Air temperature sensor
Sensor located in the airbox to detect the temperature of
the incoming air.
ATDC
After Top Dead Centre ITDC>.
Barometric pressure
Pressure of the am bient air.
Battery voltage
The voltage at the input to the Electronic Control Module
<ECM>.
BTDC
Before Top Dead Centre ITDC>.
Catalyst
Device placed in the exhaust system which reduces
exhaust emissions by stimulating secondary combustion
of the exhaust gases.
Closed throttle position
Throttle position at idle (i.e. against end stop), measured as
a voltage and expressed as percentage.
SeiVice Manual Tiger 800 and Tiger 800XC
-
Fuel System/Engine Management
Coolant temperature
The coolant temperature in the cylinder head.
Coolant temperature sensor
Sensor which detects coolant temperature.
Cooling fan status
The 'on' or 'off' condition of the cooling fan.
DTC
Diagnostic Trouble Code.
ECM
Eng ine Control Module.
Engine speed
The cra nkshaft revol utions per minute.
Fall detection
The fall detection switch will detect if the motorcycle is on
its side and will cut power to the ECM immediately.
Freeze frame
A data set captured at the time a Diagnostic Trouble Code
<DTC> is set.
Gear position sensor
Gearbox mounted sensor which delivers information to
the ECM. This is converted to the gear position value that
is displayed on the instru ment's gear position indicator
and/or neutral lamp.
Idle fuel trim
The percentage above or below the nominal fuel
requirement for the volume of air entering at idle.
1 0. 1 3