List of automotive abbreviations which may be used in shop manual.
| ABS | Anti-lock Brake System |
| A/C | Air Conditioning, Air Conditioner |
| ACL | Air Cleaner |
| A/F | Air Fuel Ratio |
| ALR | Automatic Locking Retractor |
| ALT | Alternator |
| AMP | Ampere(s) |
| ANT | Antenna |
| API | American Petroleum Institute |
| APPROX. | Approximately |
| ASSY | Assembly |
| A/T | Automatic Transmission |
| ATDC | After Top Dead Center |
| ATF | Automatic Transmission Fluid |
| ATT | Attachment |
| ATTS | Active Torque Transfer System |
| AUTO | Automatic |
| AUX | Auxiliary |
| BARO | Barometric |
| BAT | Battery |
| BDC | Bottom Dead Center |
| BTDC | Before Top Dead Center |
| CARB | Carburetor |
| CAT or CATA | Catalytic Converter |
| CHG | Charge |
| CKF | Crankshaft Speed Fluctuation |
| CKP | Crankshaft Position |
| CO | Carbon Monoxide |
| COMP | Complete |
| CPB | Clutch Pressure Back up |
| CPC | Clutch Pressure Control |
| CPU | Central Processing Unit |
| CVT | Continuously Variable Transmission |
| CYL | Cylinder |
| CYP | Cylinder Position |
| DI | Distributor Ignition |
| DIFF | Differential |
| DLC | Data Link Connector |
| DOHC | Double Overhead Camshaft |
| DPI | Dual Point Injection |
| DTC | Diagnostic Trouble Code |
| EBD | Electronic Brake Distribution |
| ECM | Engine Control Module |
| ECT | Engine Coolant Temperature |
| EGR | Exhaust Gas Recirculation |
| ELD | Electrical Load Detector |
| EPR | Evaporator Pressure Regulator |
| EPS | Electrical Power Steering |
| EVAP | Evaporative |
| EX | Exhaust |
| F | Front |
| FIA | Fuel Injection Air |
| FL | Front Left |
| FP | Fuel Pump |
| FR | Front Right |
| FSR | Fail Safe Relay |
| FWD | Front Wheel Drive |
| GAL | Gallon |
| GND | Ground |
| GPS | Global Positioning System |
| H/B | Hatchback |
| HC | Hydrocarbons |
| HID | High Intensity Discharge |
| HO2S | Heated Oxygen Sensor |
| IAB | Intake Air Bypass |
| IAC | Idle Air Control |
| IACV | Idle Air Control Valve |
| IAR | Intake Air Resonator |
| IAT | Intake Air Temperature |
| ICM | Ignition Control Module |
| ID | Identification |
| ID or I.D. | Inside Diameter |
| IG or IGN | Ignition |
| IMA | Idle Mixture Adjustment
Integrated Motor Assisted |
| IMMOBI. | Immobilizer (Immobiliser) |
| IN | Intake |
| INJ | Injection |
| INT | Intermittent |
| KS | Knock Sensor |
| L | Left |
| L/C | Lock-up Clutch |
| LCD | Liquid Crystal Display |
| LED | Light Emitting Diode |
| LEV | Low Emission Vehicle |
| LF | Left Front |
| LH | Left Handle |
| LHD | Left Handle Drive |
| LR | Left Rear |
| LSD | Limited Slip Differential |
| L-4 | In-line Four Cylinder (engine) |