SAE J1930 Terminology list
All emission related terms used in this publication are listed in accordance with SAE J1930. Accordingly, new terms, new acronyms/abbreviations and old terms are listed below.J1930 TERM ABBREVIATION OEM TERM
Air cleaner ACL Air cleaner
Barometric pressure BARO
Barometric pressure BAROS-BCDD
sensor-BCDD
Camshaft position CMP
Camshaft position sensor CMPS Crank angle sensor
Carburetor CARB Carburetor
Charge air cooler CAC Intercooler
Closed loop CL Closed loop
Closed throttle position CTP switch Idle switch
switch
Clutch pedal position switch CPP Clutch switch
switch
Continuous fuel injection CFI system
system
Continuous trap oxidizer CTOX system
system
Crankshaft position CKP
Crankshaft position sensor CKPS
Data link connector DLC
Data link connector DLC for CONSULT Diagnostic connector for
for CONSULT CONSULT
Diagnostic test mode DTM Diagnostic mode
Diagnostic test mode DTM selector Diagnostic mode selector
selector
Diagnostic test mode I DTM I Mode I
Diagnostic test mode II DTM II Mode II
Diagnostic trouble code DTC Malfunction code
Direct fuel injection system DFI system
Distributor ignition system DI system Ignition timing control
Early fuel evaporation~mixture EFE-mixture heater Mixture heater
heater
Early fuel evaporation system EFE system Mixture heater control
Electrically erasable EEPROM
programmable read
only memory
Electronic ignition system El system Ignition timing control
Engine control module ECM ECCS control unit
Engine coolant temperature ECT Engine temperature
Engine coolant temperature ECTS Engine temperature sensor
sensor
Engine modification EM
Engine speed RPM Engine speed
Erasable programmable read E~ROM
only memory
Evaporative emission system EVAP system Evaporative emission control system
Exhaust gas recirculation valve EGR valve EGR valve
Exhaust gas recirculation EGR-BPT valve BPT valve
control BPT valve
Flash electrically erasable FEEPROM
programmable
read only memory
Flash erasable programmable FEPROM
read only memory
Flexible fuel sensor FFS
Flexible fuel system FF system
Heated oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve IACV-air regulator Air regulator
-air regulator
Idle air control valve IACV-AAC valve Auxiliary air control(AAC) valve
-auxiliary air control
valve
Idle air control valve-FICD IACV-FICD solenoid FICD solenoid valve
solenoid valve valve
Idle air control valve-idle IACV-idle up control Idle up control solenoid valve
up control solenoid solenoid valve
valve
Idle speed control-FI pot 150-FI pot FI pot
Idle speed control system ISC system
Ignition control module 1CM
Indirect fuel injection system IFI system
Intake air temperature sensor IATS Air temperature sensor
Knock Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP
Manifold absolute pressure MAPS
sensor
Manifold differential pressure MDP
Manifold differential pressure MDPS
sensor
Manifold surface temperature MST
Manifold surface temperature sensor MSTS
Manifold vacuum zone MVZ
Manifold vacuum zone sensor MVZS
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection System MNeutral position switch Neutral switch
Non-volatile random access memory NVRAM
On-board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system CC system
Oxygen sensor 02S Exhaust gas sensor
Park position switch Park switch
Park/neutral position switch PNP switch Park/neutral switch
Periodic trap oxidizer system PTOX system
Powertrain control module PCM
Programmable read only memory PROM
Pulsed secondary air injection- PSAI solenoid AIV control solenoid valve
control solenoid valve valve
Pulsed secondary air injection PAIR system Air induction valve(AIV) control
system
Pulsed secondary air injection PAIR valve Air induction valve
valve
Random access memory RAM
Read only memory ROM
Scan tool ST
Secondary air injection pump AIR pump
Secondary air injection system AIR system
Sequential multiport fuel injection SF1 system Sequential fuel injection
system
Service reminder indicator SRI
Simultaneous multiport fuel Simultaneous fuel injection
injection system
Smoke puff limiter system SPL system
Supercharger SC
Supercharger bypass SCB
System readiness test SRT
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic TWC system
converter system
Three way+oxidation catalyst TWC+OC Catalyst
Three way+oxidation catalytic TWC+OC system
converter system
Throttle body TB Throttle chamber
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch TCC solenoid valve Lock-up cancel solenoid
Lock-up solenoid solenoid valve
Turbocharger TC Turbocharger
Vehicle speed sensor VSS Vehicle speed sensor
Volume air flow sensor VAFS Air flow meter
Warm up oxidation catalyst WU.OC Catalyst
Warm up oxidation catalytic WU.OC system
converter system
Warm up three.way catalyst WU-TWC Catalyst
Warm up three.way catalytic WU-TWC system
converter system
Wide open throttle position switch WOTP switch Full switch