What is the purpose of ISO 9141 1989?
Describes a subset of ISO 9141:1989. Specifies the requirements for setting-up the interchange of digital information between on-board emission-related electronic control units of road vehicles and the SAE OBD II scan tool as specified in SAE J1978.
How is a low voltage represented in ISO 9141?
With the ISO 9141 protocol, each bit of information is 96 us long and has two voltage levels to represent a logic 0 or 1. A low voltage is a logic 0 and a high voltage is a logic 1. The data link connector (DLC) allows a scan tool to communicate with the serial data line.
What is the serial data rate for ISO 9141-2?
ISO 9141-2. This protocol has an asynchronous serial data rate of 10.4 kbps. It is somewhat similar to RS-232; however, the signal levels are different, and communications happen on a single, bidirectional line without additional handshake signals. ISO 9141-2 is primarily used in Chrysler, European, and Asian vehicles.
When did the K-Line ISO 9141 come out?
K-Line ISO 9141. Brief description K-Line – ISO 9141. In the 1990s, the K-Line was one of the first ways of accessing ECUs in completed vehicles. This is why it was stipulated in the first OBD standards and has been in use ever since. Today, it is being replaced in new projects by CAN. Softing Experience.
Describes a subset of ISO 9141:1989. Specifies the requirements for setting-up the interchange of digital information between on-board emission-related electronic control units of road vehicles and the SAE OBD II scan tool as specified in SAE J1978.
With the ISO 9141 protocol, each bit of information is 96 us long and has two voltage levels to represent a logic 0 or 1. A low voltage is a logic 0 and a high voltage is a logic 1. The data link connector (DLC) allows a scan tool to communicate with the serial data line.
ISO 9141-2. This protocol has an asynchronous serial data rate of 10.4 kbps. It is somewhat similar to RS-232; however, the signal levels are different, and communications happen on a single, bidirectional line without additional handshake signals. ISO 9141-2 is primarily used in Chrysler, European, and Asian vehicles.
What does ISO 9141 mean on a memoscan?
ISO 9141 is the standard used by ChryslerDaimler, Honda, and most Asian manufacturers. It has nothing to do with trouble codes for the specific vehicle it is connected to. You can’t post conmments that contain an email address.