Abbreviated Terms and Acronyms Library

tC - Touring Coupe (aka Totally Cool)
ECM - Engine Control Module
ECU - Electronic Control Unit
MIL - Malfunction Indicator Lamp (aka CEL)
DTC - Diagnostic Trouble Codes
RAM - Random Access Memory
ROM - Read Only Memory
EEPROM - Electrically Erasable Programmable Read-Only Memory
DLC3 - Diagnostic Link Connector (aka OBDII/CAN port)
TB - Throttle Body
TPS - Throttle Position Sensor
IAT - Intake Air Temp (sensor)
MAF - Mass Air Flow (meter)
A/F - Air-Fuel Ratio Sensor Heater (aka Bank1Sensor1, Wideband)
HO2 - Heated Oxygen Sensor Heater (aka Bank1Sensor2, Narrowband, O2S)
ECT - Engine Coolant Temp (sensor)
PCV - Positive Crankcase Ventilation
VSV - Vacuum Switching Valve (purge)
ETCS - Electronic Throttle Control System (aka Drive-By Wire)
DBW - Drive-By Wire
APPS - Accelerator Pedal Position Sensor
VVT-i - Variable Valve Train with intelligence (aka w/ intake)
OCV - Oil Control Valve (aka VVT-i)
CPS - Crank Position Sensor (aka Crank Angle)
CPS - Cam Position Sensor (aka Cam Angle)
IA - Ignition Advanced
TDC - Top Dead Center
BTDC - Before Top Dead Center
ATDC - After Top Dead Center
EFI - Electronic Fuel Injection
EVAP - Evaporative Emissions
OBDI/II - On-Board Diagnostic (version I/Version II)
CAN - Controller Area Network (2007~up Engine Control Specification)
SPD - Vehicle Speed
RPM - Revolutions Per Minute
ALT - Alternator
GEN - Generator
BATT - Battery (aka BAT)
GND - Ground
VDC - Volts Direct Current (aka D/C, DC)
VAC - Volts Alternating Current (aka A/C, AC)
AMP - Amperes (aka Amperage)
mA - Milliamps
Press - Pressure

A/T - Automatic Transaxle (aka Auto, Slush Box)
M/T - Manual Transaxle (aka Stick, Gear Grinder)
TPWS - Tire Pressure Warning System
TPM - Tire Pressure Monitor
EBFD - Electronic Brake Force Distribution
MPH - Miles Per Hour (aka mph)
KM/H - KiloMeters per Hour (aka Km/H, KMH, km/h)
TBL - Third Brake Light

F/I - Forced Induction (aka FI)
S/C - Super Charged (aka SC)
N/A - Normally Aspirated (aka NA)
I/C - Inter Cooler (aka IC)
FMIC - Front Mount Inter Cooler
TMIC - Top Mount Inter Cooler
SMIC - Side Mount Inter Cooler
CAI - Cold Air Intake
SRI - Short Ram Intake
A/FR - Air/Fuel Ratio (aka AFR)

CEL - Check Engine Light
FTW - For The Winner
BHP - Brake Horse Power
FWD - Front-Wheel Drive
RWD - Rear-Wheel Drive
AWD - All-Wheel Drive
VSC - Vehicle Stability Control
TCS - Traction Control System
ABS - Anti-Lock Braking System
CAT - Catalytic Converter
dB - Decibel
PSI - Pounds Per Square Inch
TRD - Toyota Racing Development
LED - Light Emitting Diode
HID - High Intensity Discharge

Abbreviations Used In Scion tC Maintenance Pub

The following abbreviations are used in this manual.
A/C = Air Conditioning
A/T = Automatic Transaxle
ABS = Anti–Lock Brake System
CAN = Controller Area Network
DEF = Defogger
ECM = Electronic Control Module
ECU = Electronic Control Unit
ESA = Electronic Spark Advance
FL = Fusible Link
IC = Integrated Circuit
INT = Intermittent
J/B = Junction Block
LH = Left–Hand
M/T = Manual Transaxle
R/B = Relay Block
RH = Right–Hand
SFI = Sequential Multiport Fuel Injection
SRS = Supplemental Restraint System
SW = Switch
TEMP = Temperature
TVIP = TOYOTA Vehicle Intrusion Protection
VSV = Vacuum Switching Valve
w/ = With
w/o = Without