What might be the reason for selecting these pins for fault detection? Why not some other pins? Maybe fault detection is required on these pins to meet some safety standard?Ĭonsider a Level 2 Autonomous Camera ECU and Radar ECU that support features such as Lane Departure Warning(LDW), Adaptive Cruise Control(ACC), Automatic Emergency Braking(AEB), etc. They also require supplier to detect these faults on all internal Serial Peripheral Interface(SPI) busses. Or if the output impedance reaches OC threshold, software will detect OC fault.įor some Automotive Advanced Drive Assist System(ADAS) ECU, one Original Equipment Manufacturer(OEM) requires supplier to implement software and hardware to detect OC, STG, and STB faults on all external Digital Outputs and PWM Outputs. If this wire is cut, software will detect OC fault. There is a wire connected from this pin to somewhere else. im really confused abt fully connecte, 2 wire Psi win data cable and all that. im using a siemens data cable with a marking s25 on it. A typical Electronic Control Unit(ECU) performs Open Circuit(OC), Short to Ground(STG), and Short to Battery(STB) Diagnostics on selected internal and external pins in the ECU.įor example, consider a external output pin. cud u pls specify the level conerter ic if im trying to interface with a 5V microcontroller.
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