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Discussion and questions related to the course CAN Bus Communications Decoded
Good day I am presently working on a toyota vitz rs I have installed a ECU MASTER BLACK to replace the factory ECU i was able to capture some data but I am having difficulties to decode.
Signals I'm looking for
COOLANT TEMP LIGHT
AC CLUTCH SIGNAL
So when in the log was the engine running (and what RPM), and when was it stopped (0 RPM)?
When in the log did you move the steering (I generally use straight, left, straight, right, straight, and 5 seconds in each position.
Did you cause the coolant temp light to come on or go off? When was this in the log?
When did you cause the AC Clutch to signal to activate / deactivate?
You should setup some tests. Start logging, and note at what time, you do various things (start engine at 10 seconds), idle at 900 RPM until 20 seconds, hold engine at 2000 RPM until 30 seconds).
Maybe you do a different log where you move the steering as described earlier.
With that info and some long logs, you might be able to figure some of that out.
One idea on coolant temp light. What happens if you disconnect the coolant temp sensor -- does the light come on? Do that and record the time when you did it.
I found some reference to another Toyota (Prius), that steering angle/rate info was on CANID 0x264 -- since you have messages 0x260 and 0263 - you might look for steering info there. Its often very similar CAN IDs for a given manufacturer.
thanks for response you a correct with 260 I see some feedback coming from it whenever I turned the steering. Also I was able to take sample from another car but I need to learn now how to decode and implement into ECU MASTER custom can settings
Thanks for responding sir you a correct with 260 I see some feedback coming from it whenever I turned the steering. Also, I was able to take sample from another car, but I need to learn now how to decode and implement into ECU MASTER custom can settings.
Example: “260 8 00 00 00 00 00 00 00 6A”