WIS Document: 8553

| | Terminology according to SAE J1930 Partly new terminology which affects all emission-related components, signals and functions is introduced starting from model year 1994. This new terminology conforms to the Society of Automotive Engineers Recommended Practice SAE J1930. The use of SAE J1930 terminology for emission-related systems and components is required by the California Air Resources Board (CARB) for new service manuals beginning with the 1993 model year. The U.S. Environmental Protection Agency has also proposed regulations requiring the use of J1930 terminology beginning with 1994 car models. While this change in terminology may be troublesome in the beginning for technicians accustomed to Saab component and system names, standardization within the automotive industry will in time reduce the confusion that can result from different terms for the same component and the risk of misinterpretation. For example, the Saab term "AIC valve" is termed by other manufacturers as "Electronic Air Control Valve solenoid", Auxiliary Air Control valve", "Idle Stabilizer valve" and "Air Control Valve". Beginning with the 1994 model year, we shall be using instead the J1930 term IAC valve (Idle Air Control), which is the same term other automotive manufacturers around the world will use. The SAE J1930 terms were not selected on the basis of what component names were the ones commonly used by most auto manufacturers. Instead the SAE used a logical method for describing components in which modifiers are added to a base word in order of decreasing significance. To use the example above: " Idle Air Control Valve ": | • | The basic concept is Valve . | • | Control indicates that the valve has a controlling function. | • | Air tells us that the valve controls air (airflow). | • | Idle , finally, tells us what sort of air the valve controls, i.e. idling air. In order to ease the transition to the new terminology, there is a listing on the next page comparing previous Saab component and system terms with the equivalent SAE J1930 terms. Some of the terms included in this listing may not be used in this particular manual, but it is likely that you will encounter them later. As SAE J1930 is a market requirement in the USA, changes in terminology will affect other markets to a lesser extent. We nevertheless consider it important that you should be aware of these changes, wherever you are in the world. You can check the following listing if and when you come across a term that appears unfamiliar. The listing is intended to show differences between the new J1930 terminology and terms used previously. Terms which are also used in the comparison, which means that J1930 can be expected to have a direct impact on terminology regardless of language. | Term according to SAE J1930 | Previous English term | Swedish term | Boost Pressure Control Valve BPC Valve | APC Solenoid | Boost pressure control valve, Solenoid valve | Charge Air Bypass Valve CAB Valve | Turbo Bypass Valve | Charge air bypass valve | Charge Air Cooler CAC | Intercooler | Charge air cooler | Clutch Control Module CCM | Sensonic ECU | Clutch control module | Contious Fuel Injection CFI | C. I. | Continuous fuel injection | Crankshaft Position Sensor CKP Sensor | Crank Sensor | Crankshaft position sensor/ crankshaft sensor | Data Link Connector DLC | ISAT Test Socket | Data link connector, ISAT | Diagnostic Trouble Code DTC | Fault Code | Diagnostic trouble code | Engine Control Module ECM | Engine Management ECU | Engine control module | Engine Coolant Temperature Sensor ECT Sensor | Coolant temperature sensor | Engine coolant temperature sensor | Evaporative Emission Canister Purge Valve EVAP Canister Purge Valve | ELCD Valve | Evaporative emission canister purge valve | Evaporative Emission Canister EVAP Canister | Charcoal Canister | Evaporative emission canister | Fuel Pressure Regulator FPR Regulator | Pressure Regulator | Fuel pressure regulator | Heated Oxygen Sensor HO2S | Heated O 2 Sensor | Heated oxygen sensor | Idle Air Control Valve IAC Valve | AIC Valve | Idle air control valve | Intake Air Heat Plate IAH Plate | Heat plate | Intake air heat plate | Intake Air Temperature Sensor IAT Sensor | Intake Temperature Sensor | Intake air temperature sensor | Ignition Discharge Module IDM | DI Cassette | Ignition discharge module | Idle Speed Control ISC | Idle control | Idle speed control | Manifold Absolute Pressure Sensor MAP Sensor | Pressure sensor | Manifold absolute pressure sensor | Multiport Fuel Injection MFI | Multiport Fuel Injection | Multiport fuel injection | Malfunction Indicator Lamp MIL | Check Engine Lamp | Malfunction indicator lamp | On-Board Diagnostics OBD | Self diagnostics | On-board diagnostics | Oxygen Sensor O2S | Unheated O 2 Sensor | Oxygen sensor | Sequential Multiport Fuel Injection SFI | Sequential Fuel Injection | Sequential multiport fuel injection | Scan Tool Scan Tool | ISAT | ISAT | Transmission Control Module TCM | Transmission ECU | Transmission control module | Throttle Position Sensor TP Sensor | Throttle potentiometer | Throttle position sensor | Wastegate W | Wastegate | Wastegate/ boost pressure regulator | Wide Open Throttle WOT | Full Throttle | Wide open throttle