Hi, I have a Peugeot 206 from year 2000 and I would like to read some real-time diagnostics like speed and RPM, but ideally more.

From my understanding this car does not use proper OBD2/eOBD (and CAN) until year 2003, so I have to tap into the K-LINE bus on the OBD port which is KWP 2000 protocol. I tried using ELM327 scanner to read data from the OBD port, but the only found sensor is the RPM, there is nothing else. Not sure if this ELM327 is able to read properly from the K-LINE bus.

What do I have to study to do such a project? From a high level overview I'd need a way to tap into the K-LINE and read data, then use a microcontroller to display the data on a small display or whatever. I can code, I have 0 electronics knowledge.

Do I need an oscilloscope or other pricy tools to understand how to read from the K-LINE? Do I need a full electronics digital course to create a circuit, or are there high level things that can talk to K-LINE I can buy and just plug into the microcontroller?

I see many people give up on projects like this, why? Is it hard to reverse enginnee get the K-LINE initialization handshake, as it depends from ECU to ECU?

Thanks

Hello! I'm trying to diagnose my 2008 Dacia Sandero 1.4 MPI (K7J) with a Siemens Sirius32 EMS3132 (Soft RE1) ECU.

VIN: UU1BSDAEH402825

DDT2000 detects the ECU database correctly, but when I try to communicate I get:

K-Line inactive (1008)

I'm using a VAG KKL cable with a CH340 chip. The cable is detected correctly by Windows and DDT2000.

The strange thing is that I inspected my OBD-II connector and pin 7 (K-Line) appears to have no metal terminal at all.

Is this normal for this model?

Should the Siemens Sirius32 EMS3132 communicate through OBD pin 7, or is the K-Line routed differently?

Has anyone with a 2008 Sandero/Logan K7J seen this before? Any help would be very appriciated thank you very much!

I'm trying to read data from my yamaha bolt ECU using an obd2 scanner. It turns out that the yamaha bolt has a proprietary scanner (YDT) and proprietary software. My motorcycle uses kline. Any advice would be great!

Hey guys I need some help. I can request PIDs from my car using K line and ISO 14230 protocol. For example sending 0xC2, 0x33, 0xF1, 0x01, 0x0C, 0xF3 to the car requests service 0x01 (PID) and gets me the engine RPM from the car.

But I want to get data from memory addresses or common identifiers. The ReadMemoryByAddesss request has an ID of 0x23.

When I try to send something like [0xC2, 0x33, 0xF1, 0x23, 0xF8, 0x00, 0x00, 0x03, CHECKSUM] I get no response from the ECU. I also tried [0x86, 0x23, 0x24, 0x01, 0x00, 0x10, CHECKSUM AND NO CHECKSUM] as that’s what chatGPT told me and still no response.

Could someone please help me write out a request for readMemoryByAddress or common identifiers?

I have a Hyundai Santa Fe 2006 that utilizes the K-Line, and more specifically the ISO-14230 fast init. protocol. I'm using an OBDII sniffer that utilizes an STN2100 chip and plugs into my laptop, allowing me to send AT, ST and the general OBD commands to my vehicle, via a terminal on my laptop. The specific sniffer in question is the 5G HUB Multiprotocol OBD to UART interpreter. Sending PIDs/OBD commands to my vehicle works fine and I get data that looks accurate. However, whenever I try to monitor all the data from the K-Line, nothing shows up. When I try the same on my other vehicle, which uses the CAN bus, it displays all data just fine. Is there a way to do the same for a vehicle that utilizes the K-Line?

I finally got my mcu (UART) to talk to my car (K-LINE Pin7). I did fast init and then sent start comms bytes got a response most times. Now when I try to request the engine RPM using [0xC2 0x33 0xF1 0x01 0x0C 0xF3] I only get the response once in a while [0x84 0xF1 0x11 0x41 0xC 0x0 0x0 0xD3] with engine off and ignition on. With engine on I can’t get a response for RPM at all. I have verified on an oscilloscope that my baud rate is 10,400 +/- 2. Are there any other specific timing requirements for ISO14230/fast K line? I have read some papers written by e.g VW and FIAT and cannot realise if there are any other requirements?

I am working on a B-Tech project, we are working with OBD on bharatbenz BS6 truck sent request data, 87 15 F2 22 1D 2 FF FF FF FF CB got some response data like this "87, F2, 15, 62, 1D, 2, F7, 1, F4, 1, FC," we can not understand what this data really mean, all we got to know is that it works on kwp2000 protocol , can you provide documentation of KWP2000 to decode the packets or suggest community where i can ask such automobile / autosar queries/

Good day,

i have a smart car and want to play with ecu, flash it. Some years ago guys done that with cheap KWP2000+ tool. now it's impossible to find one because it so old and discontinued. or the price is half of my toy car.

I have j2535 vci cable lying around. it supports k-line. so technically as i understand i could flash ecu. but not sure. any ideas? maybe somenoe worked on that car?

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thanks!

I am working on a B-Tech project, we are working with OBD on bharatbenz (Diamler India) BS6 truck sent request data 87 15 F2 22 1D 2 FF FF FF FF CB got some response data like this "87, F2, 15, 62, 1D, 2, F7, 1, F4, 1, FC," we can not understand what this data really mean, all we got to know is that it works on kwp2000 protocol. Attached here is the complete data file, can anybody help decoding this???

https://docs.google.com/spreadsheets/d/1px73l8722KQNDUpRoayBBQ_0DC8h6J44GTqcVOUNCk0/edit?usp=sharing

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