Acronyms, Glossary and Abbreviations Toyota / Lexus by al ...

1 Acronyms, Glossary and Abbreviations Toyota / Lexus by al tech page ( Note. Not all Vehicles used all Devices 1 Acronyms Description (852) AB1,2,3,4 Supercharger Bypass Valve ABV Supercharger Bypass Valve VSV ADJ2 Ground A/C SW A/C Switch Signal A/C1 A/C Amplifier ACIS Acoustic Control Intake System ACIS ACIS VSV ACMG A/C Magnetic Clutch Relay ACT Air Conditioning ACV A/C Idle Up Valve AF+/- Air/Fuel ratio Sensor AFL +/- Air/Fuel ratio Sensor AFR +/- Air/Fuel ratio Sensor AMC A/C Amplifier (+B))

2 Battery Power from EFI Relay BATT Battery Power B/M FR/HRT (Hi) Relay CF A/C Pressure Switch relay CG Chassis Ground CL+/- Magnetic Clutch CODE Transponder Key Amplifier DI Fuel Pump Control Ground (Earth) EFI+/- Traction Control ECU EFI+/- Throttle ECU EFIF EGLS EGR Valve Position EGR EGR VSV for control EGR Valve (connect it to VCV or atmosphere). EO1 Ground (Earth) EOM Ground (Earth)

3 ELS Electric Load Sensor Circuit ELS2 Integration Relay ETC Throttle ECU EVAP EVAP VSV FC Fuel Pump Relay FPU Fuel Pressure Up VSV G Distributor G+ Camshaft Position G22+ Camshaft Position Oxygen Sensor Heater Control Air/Fuel Heater Control IDL Throttle position Switch IGF IGF Signal IGSW Ignition Switch IGT Igniter/Ignition Coil(s) IMLD Theft Deterrent ECU IMLD To Security Indicator light ISCC IAC Stepper Motor ISCO IAC Stepper Motor KNK(L/R)

4 Knock Sensor KS MAF Meter Karmen Vortex Type LOCK IN A/C Magnetic Clutch Lock M+ M- Throttle Control Motor MREL Main Relay NCO +/- O/D Direct Clutch Speed NE+ Crankshaft Position NE- Camshaft/Crankshaft Position NEO ABS and Traction ECU NSW Starter Circuit OD Overdrive Switch OIL A/T Fluid Temp. Sensor OMR Engine Oil Feeder Control Motor OMT Engine Oil Feeder Control Mtr Relay OX1,2, Oxygen Sensor PIM Manifold Absolute Pressure PM1 Turbo Pressure PMC Waste Gate Valve VSV PRG EVAP VSV PS SW Power Steering Switch PTNK Vapor Pressure Sensor Signal R Back Up Light Switch RSC IAC (Rotary Solenoid) RSO IAC (Rotary Solenoid)

5 RXCK Transponder Key Amplifier SDL Signal Data Line SG Signal Ground SDG Signal Data Ground SMC Supercharger Magnetic Clutch SPD Vehicle Speed STA Park/Neutral Switch STP Stop Light Switch TC Data Link Connector 1 THA Intake Air Temp. Sensor Data Link Connector 1 THG EGR Temperature THW Engine Coolant Temp. THWO A/C Amplifier TPC Vapor Pressure Sensor VSV TRC+/- Traction Control ECU TXCT Transponder Key Amplifier VC Voltage Control VCV Vacuum Control Valve (on Vacuum Modulator Type EGR System)

6 VG MAF Hot Wire Type VPA1,2 Accelerator Pedal Position VS MAF Vane Type VSV1 Intake Air Control VSV VSV2 Exhaust Gas Control Valve VSV3 Exhaust Bypass VSV VTO1 Throttle ECU VTO2 Throttle ECU VTA1,2, Throttle Position W Malfunction Indicator #10 - #80 Fuel Injectors Glossary of SAE and Toyota / Lexus Terms SAE Abbreviations / SAE TERMS / Toyota TERMS ( )- Abbreviations A/C Air Conditioning Air Conditioner ACL Air Cleaner Air Cleaner AIR Secondary Air Injection Air Injection (AI) AP Acceleration Pedal - B+ Battery Positive Voltage +B, Battery Voltage BARO Barometric Pressure - CAC Charge Air Cooler Intercooler CAN Controller Area Network Controller Area Network CARB Carburetor Carburetor Acronyms, Glossary and Abbreviations Toyota / Lexus by al tech page ( ) Note.

7 Not all Vehicles used all Devices 2 CCV CANISTER CLOSED VALVE CFI Continuous Fuel Injection - CID Component Identification Data) Component Identification Data) CKP Crankshaft Position Crank Angle CL Closed Loop Closed Loop CMP Camshaft Position Cam Angle CPP Clutch Pedal Position - CTOX Continuous Trap Oxidizer - CTP Closed Throttle Position Idle ON (IDL ON) DFI Direct Fuel Injection (Diesel) Direct Injection (DI) DI Distributor Ignition - DLC 1, 2, 3 Data Link Connector 1, 2, 3 1- Check Connector, 2 Toyota Diagnosis Communication Link (TDCL), 3- OBDII diagnostic Connector DTC Diagnostic Trouble Code Diagnostic Code DTM Diagnostic Test Mode - ECL Engine Control Level - ECM Engine Control Module Engine ECU (Electronic Control Unit) ECT Engine Coolant Temperature Coolant Temperature, Water Temperature, THW EEPROM Electrically Erasable Programmable Read Only Memory Erasable Programmable Read Only Memory (EPROM)

8 EFE Early Fuel Evaporation Cold Mixture heater (CMH). Heat control Valve (HCV) EGR Exhaust Gas Recirculation Exhaust Gas Recirculation EI Electronic Ignition Distributorless Ignition (DI) EM Engine Modification Engine Modification (EM) EPROM Erasable Programmable Read Only Mem Programmable Read Only Memory (PROM) EVAP Evaporative Emission Evaporative Emission Control FC Fan Control - FEEPROM Flash Electrically Erasable Programmable Read Only Memory - FEPROM Flash Erasable Programmable Read Only Memory - FF Flexible Fuel - FP Fuel Pump Fuel Pump GEN Generator Alternator GND Ground Ground HO2S Heated Oxygen Sensor Heated Oxygen Sensor (HO2S) IAC Idle Air Control Idle Speed Control (ISC)

9 IAT Intake Air Temperature Intake or Inlet Air Temperature ICM Ignition Control Module - IFI Indirect Fuel Injection Indirect Injection IFS Inertia FuelShutOff - ISC Idle Speed Control - KS Knock Sensor Knock Sensor MAF Mass Air Flow Air Flow Meter MAP Manifold Absolute Pressure Manifold Pressure Intake Vacuum MC Mixture Control Electric Bleed Air Valve (EBAV), Mixture Control Valve, Electric Air Control Valve (EACV) MDP Manifold Differential Pressure - MFI Multiport Fuel Injection Electronic Fuel Injection (EFI) MIL Malfunction Indicator Lamp Check Engine Light MST Manifold Surface Temperature - MVZ Manifold Vacuum Zone - NVRAM Non-Volatile Random Access Memory - NiMH Nickel Metal Hydride Nickel Metal Hydride O2S Oxygen Sensor Oxygen Sensor, O2 Sensor (O2S) OC Oxidation Catalytic Converter Oxidation Catalyst Converter (CCO) OBD On-Board Diagnostic On-Board Diagnostic (OBD) OIL - A/T Fluid Temp.

10 Sensor OP Open Loop Open Loop PAIR Pulsed Secondary Air Injection Air Suction (AS) PCM Powertrain Control Module - PID Parameter Identifier Parameter Identifier PNP Park/Neutral Position - PROM Programmable Read Only Memory - PSP Power Steering Pressure - PTOX Periodic Trap Oxidizer Diesel Particulate Filter (DPF) Acronyms, Glossary and Abbreviations Toyota / Lexus by al tech page ( ) Note. Not all Vehicles used all Devices 3 Diesel Particulate Trap (DPT) RAM Random Access Memory Random Access Memory RM Relay Module - ROM Read Only Memory Read Only Memory RPM Engine Speed Engine Speed SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI)