Again, not all vehicles will support all PIDs and there can be manufacturer-defined custom PIDs that are not defined in the OBD-II standard.

The expected response for each PID is given, along with information on how to translate the response into meaningful data. The table below shows the standard OBD-II PIDs as defined by SAE J1979. The nonOBD UDS services start at 0x10 to avoid overlap of ID-range. the voltage of the traction battery in a hybrid electric vehicle (HEV). Each manufacturer may define additional services above #9 (e.g.: service 22 as defined by SAE J2190 for Ford/GM, service 21 for Toyota) for other information e.g. Vehicle manufacturers are not required to support all services. Permanent Diagnostic Trouble Codes (DTCs) (Cleared DTCs)

Show pending Diagnostic Trouble Codes (detected during current or last driving cycle)Ĭontrol operation of on-board component/system Test results, other component/system monitoring (Test results, oxygen sensor monitoring for CAN only) Test results, oxygen sensor monitoring (non CAN only) They are as follows:Ĭlear Diagnostic Trouble Codes and stored values Before 2002, J1979 referred to these services as 'modes'. There are 10 diagnostic services described in the latest OBD-II standard SAE J1979. Some heavy duty trucks in North America use the SAE J1962 OBD-II diagnostic connector that is common with passenger cars, notably Mack and Volvo Trucks, however they use 29 bit CAN identifiers (unlike 11 bit headers used by passenger cars). Heavy duty vehicles (greater than 14,000 lb or 6,400 kg) made after 2010, for sale in the US are allowed to support OBD-II diagnostics through SAE standard J1939-13 (a round diagnostic connector) according to CARB in title. They are both required to be accessed through a standardized data link connector defined by SAE J1962. In 1996, light duty vehicles (less than 8,500 lb or 3,900 kg) were the first to be mandated followed by medium duty vehicles (8,500–14,000 lb or 3,900–6,400 kg) in 2005. Though not mandated, many motorcycles also support OBD-II PIDs. Manufacturers also define additional PIDs specific to their vehicles. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. SAE standard J1979 defines many OBD-II PIDs. OBD-II PIDs ( On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.

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