Lexus NX: Glossary Of Sae And Lexus Terms
GLOSSARY OF SAE AND LEXUS TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE recommendations, as well as their LEXUS equivalents.
| SAE Abbreviation | SAE Term | LEXUS Term ( )-Abbreviation |
|---|---|---|
| A/C | Air Conditioning | Air Conditioner |
| ACL | Air Cleaner | Air Cleaner, A/CL |
| AIR | Secondary Air Injection | Air Injection (AI) |
| AP | Accelerator Pedal | - |
| B+ | Battery Positive Voltage | +B, Battery Voltage |
| BARO | Barometric Pressure | - |
| CAC | Charge Air Cooler | Intercooler |
| CARB | Carburetor | Carburetor |
| CFI | Continuous Fuel Injection | - |
| 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 | LL ON, Idle ON |
| DFI | Direct Fuel Injection | Direct Injection (DI./INJ) |
| DI | Distributor Ignition | - |
| DLC3 | Data Link Connector 3 | OBD II Diagnostic Connector |
| DTC | Diagnostic Trouble Code | Diagnostic Trouble Code |
| DTM | Diagnostic Test Mode | - |
| ECL | Engine Coolant Level | - |
| ECM | Engine Control Module | Engine Electronic Control Unit (ECU) |
| ECT | Engine Coolant Temperature | Coolant Temperature, Water Temperature (THW) |
| EEPROM | Electrically Erasable Programmable Read Only Memory | Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM) |
| EFE | Early Fuel Evaporation | Cold Mixture Heater (CMH), Heat Control Valve (HCV) |
| EGR | Exhaust Gas Recirculation | Exhaust Gas Recirculation (EGR) |
| EI | Electronic Ignition | Distributorless Ignition (DLI) |
| EM | Engine Modification | Engine Modification (EM) |
| EPROM | Erasable Programmable Read Only Memory | Programmable Read Only Memory (PROM) |
| EVAP | Evaporative Emission | Evaporative Emission Control (EVAP) |
| 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 (GND) |
| HO2S | Heated Oxygen Sensor | Heated Oxygen Sensor (HO2S) |
| IAC | Idle Air Control | Idle Speed Control (ISC) |
| IAT | Intake Air Temperature | Intake or Inlet Air Temperature |
| ICM | Ignition Control Module | - |
| IFI | Indirect Fuel Injection | Indirect Injection (IDL) |
| IFS | Inertia Fuel-Shutoff | - |
| ISC | Idle Speed Control | - |
| KS | Knock Sensor | Knock Sensor |
| MAF | Mass Airflow | Air Flow Meter |
| MAP | Manifold Absolute Pressure | Manifold Pressure Intake Vacuum |
| MC | Mixture Control | Electric Bleed Air Control Valve (EBCV) Mixture Control Valve (MCV) 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 | - |
| O2S | Oxygen Sensor | Oxygen Sensor, O2 Sensor (O2S) |
| OBD | On-Board Diagnostic | On-Board Diagnostic System (OBD) |
| OC | Oxidation Catalytic Converter | Oxidation Catalytic Convert (OC), CCo |
| OL | Open Loop | Open Loop |
| PAIR | Pulsed Secondary Air Injection | Air Suction (AS) |
| PCM | Powertrain Control Module | - |
| PNP | Park/Neutral Position | - |
| PROM | Programmable Read Only Memory | - |
| PSP | Power Steering Pressure | - |
| PTOX | Periodic Trap Oxidizer | Diesel Particulate Filter (DPF) Diesel Particulate Trap (DPT) |
| RAM | Random Access Memory | Random Access Memory (RAM) |
| RM | Relay Module | - |
| ROM | Read Only Memory | Read Only Memory (ROM) |
| RPM | Engine Speed | Engine Speed |
| SC | Supercharger | Supercharger |
| SCB | Supercharger Bypass | E-ABV |
| SFI | Sequential Multiport Fuel Injection | Electronic Fuel Injection (EFI), Sequential Injection |
| SPL | Smoke Puff Limiter | - |
| SRI | Service Reminder Indicator | - |
| SRT | System Readiness Test | - |
| ST | Scan Tool | - |
| TB | Throttle Body | Throttle Body |
| TBI | Throttle Body Fuel Injection | Single Point Injection Central Fuel Injection (Ci) |
| TC | Turbocharger | Turbocharger |
| TCC | Torque Converter Clutch | Torque Converter |
| TCM | Transmission Control Module | Transmission ECU, ECT ECU |
| TP | Throttle Position | Throttle Position |
| TR | Transmission Range | - |
| TVV | Thermal Vacuum Valve | Bimetallic Vacuum Switching Valve (BVSV) Thermostatic Vacuum Switching Valve (TVSV) |
| TWC | Three-Way Catalytic Converter | Three-Way Catalytic (TWC) Manifold Converter CCRO |
| TWC+OC | Three-Way + Oxidation Catalytic Converter | CCR + CCo |
| VAF | Volume Airflow | Air Flow Meter |
| VR | Voltage Regulator | Voltage Regulator |
| VSS | Vehicle Speed Sensor | Vehicle Speed Sensor |
| WOT | Wide Open Throttle | Full Throttle |
| WU-OC | Warm Up Oxidation Catalytic Converter | - |
| WU-TWC | Warm Up Three-Way Catalytic Converter | - |
| 3GR | Third Gear | - |
| 4GR | Fourth Gear | - |
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Inside Vehicle
General MaintenanceGENERAL MAINTENANCE CAUTION / NOTICE / HINT
These are maintenance and inspection items that are considered to be the owner's responsibility.
The owner can do them or they can ha
Outside Vehicle
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These are maintenance and inspection items that are considered to be the owner's responsibility.
The owner can do them or they can ha
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Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NUT (a) Install the 2 nuts. 2. INSTALL RADIATOR GRILLE EMBLEM (a) Attach the claw and guide to install the radiator grille emblem. (b) Install the 2 screws. 3. INSTALL RADIATOR GRILLE 4. INSTALL RADIATOR GRILLE MOULDING (a) Attach the 12
Left Headlight ECU Variation Error (B2456)
DESCRIPTION This DTC is output when a headlight ECU sub-assembly LH that is incompatible with the vehicle is installed. The headlight ECU sub-assembly LH outputs DTC B2456. DTC No. Detection Item DTC Detection Condition Trouble Area B2456 Left Headlight ECU Variation Error Headlight
