General Information: Abbreviations
GENERAL INFORMATION ABBREVIATIONS
| A | |
| ABS | Anti-lock Brake System |
| ATDC | After Top Dead Center |
| API | American Petroleum Institute |
| ATF | Automatic Transmission Fluid |
| ALR | Automatic Locking Retractor |
| AC | Alternating Current |
| A/T | Automatic Transmission |
| A/C | Air Conditioning |
| ABDC | After Bottom Dead Center |
| A/F | Air Fuel Mixture Ratio |
| A-ELR | Automatic-Emergency Locking Retractor |
| AWD | All Wheel Drive |
| B | |
| B+ | Battery Positive Voltage |
| BTDC | Before Top Dead Center |
| BBDC | Before Bottom Dead Center |
| BCM | Body Electrical Control Module |
| BDC | Bottom Dead Center |
| C | |
| CAN | Controller Area Network |
| CKT | Circuit |
| CKP Sensor | Crankshaft Position Sensor |
| CMP Sensor | Camshaft Position Sensor |
| CO | Carbon Monoxide |
| CPP Switch | Clutch Pedal Position Switch (Clutch Switch, Clutch Start Switch) |
| CPU | Central Processing Unit |
| CRS | Child Restraint System |
| D | |
| DC | Direct Current |
| DLC | Data Link Connector (Assembly Line Diag. Link, ALDL, Serial Data Link, SDL) |
| DOHC | Double Over Head Camshaft |
| DOJ | Double Offset Joint |
| DRL | Daytime Running Light |
| DTC | Diagnostic Trouble Code (Diagnostic Code) |
| E | |
| EBCM | Electronic Brake Control Module, ABS Control Module |
| EBD | Electronic Brake Force Distribution |
| ECM | Engine Control Module |
| ECT Sensor | Engine Coolant Temperature Sensor (Water Temp. Sensor, WTS) |
| EGR | Exhaust Gas Recirculation |
| EGRT Sensor | EGR Temperature Sensor (Recirculated Exhaust Gas Temp. Sensor, REGTS) |
| EFE Heater | Early Fuel Evaporation Heater (Positive Temperature Coefficient, PTC Heater) |
| ELR | Emergency Locking Retractor |
| EPS | Electronic Power Steering |
| EVAP | Evaporative Emission |
| EVAP Canister | Evaporative Emission Canister (Charcoal Canister) |
| F | |
| FWD | Front Wheel Drive |
| 4WD | 4 Wheel Drive |
| G | |
| GEN | Generator |
| GND | Ground |
| H | |
| HC | Hydrocarbons |
| HO2S | Heated Oxygen Sensor |
| HVAC | Heating, Ventilating and Air Conditioning |
| I | |
| IAC Valve | Idle Air Control Valve (Idle Speed Control Solenoid Valve, ISC Solenoid Valve) |
| IAT Sensor | Intake Air Temperature Sensor (Air temperature Sensor, ATS) |
| ICM | Immobilizer Control Module |
| IG | Ignition |
| ISC Actuator | Idle Speed Control Actuator (Motor) |
| L | |
| LH | Left Hand |
| LSPV | Load Sensing Proportioning Valve |
| M | |
| MAF Sensor | Mass Air Flow Sensor (Air Flow Sensor, AFS, Air Flow Meter, AFM) |
| MAP Sensor | Manifold Absolute Pressure Sensor (Pressure Sensor, PS) |
| Max | Maximum |
| MFI | Multiport Fuel Injection (Multipoint Fuel Injection) |
| Min | Minimum |
| MIL | Malfunction Indicator Lamp ("SERVICE ENGINE SOON" Light) |
| M/T | Manual Transmission |
| N | |
| NOx | Nitrogen Oxides |
| O | |
| OBD | On-Board Diagnostic System (Self-Diagnosis Function) |
| OCM | Occupant Classification Module |
| O/D | Overdrive |
| OHC | Over Head Camshaft |
| O2S | Oxygen Sensor |
| P | |
| PNP | Park / Neutral Position |
| P/S | Power Steering |
| PSP Switch | Power Steering Pressure Switch (P/S Pressure Switch) |
| PCM | Powertrain Control Module |
| PCV | Positive Crankcase Ventilation |
| R | |
| RH | Right Hand |
| S | |
| SAE | Society of Automotive Engineers |
| SDM | Sensing and Diagnostic Module (Air Bag Controller, Air bag Control Module) |
| SFI | Sequential Multiport Fuel Injection |
| SOHC | Single Over Head Camshaft |
| T | |
| TBI | Throttle Body Fuel Injection (Single-Point Fuel Injection, SPI) |
| TCC | Torque Converter Clutch |
| TCM | Transmission Control Module (A/T Controller, A/T Control Module) |
| TDC | Top Dead Center |
| TP Sensor | Throttle Position Sensor |
| TVV | Thermal Vacuum Valve (Thermal Vacuum Switching Valve, TVSV, Bimetal Vacuum Switching Valve, BVSV) |
| TWC | Three Way Catalytic Converter (Three Way Catalyst) |
| 2WD | 2 Wheel Drive |
| V | |
| VIN | Vehicle Identification Number |
| VSS | Vehicle Speed Sensor |
| VVT | Variable Valve Timing |
| W | |
| WU-OC | Warm Up Oxidation Catalytic Converter |
| WU-TWC | Warm Up Three Way Catalytic Converter |