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Greetings! I'm hoping that someone may be able to provide some insight into this issue.
My car is a 2006 Japanese Toyota Harrier which I believe is the same as the RX330. It's an old car but I like it; being old allows me to tinker with it.
Due to certain issues that I have been having, which I will explain below, I had been checking the can bus via the OBD connector with a scope. Voltage levels look good with CANH (yellow), CANL(Blue) and Math being CANL-CANH in red. (my mistake - forgot to switch the operators, it should have been CANH - CANL.)
Anyway, the screenshot I got is below, with a zoomed version in the second image.
The frame shown appears to me to be non standard as compared to other vehicles and devices I've checked but I'm not sure. However, the other issues I'm having include
Unable to retrieve data via VCX Nano and TechStream
Unable to retrieve data via ELM327. This used to be able to work.
Engine & VSC lights permanently on.
Suspension a bit stiff(?)
Initially, I was concerned that being unable to retrieve data was due to the DLC3 connector itself but I now believe that not to be the case especially after looking at the screenshots. I think there is something wrong with the can bus and that this may also be affecting the VSC and ABS unit and possibly the suspension.
If you have any suggestions for trouble shooting this issue, I'd be very grateful. My initial thought was to look at J/C1 and J/C2 but I've had some trouble identifying them... The connectors in the Japanese service manuals appear to be different and I don't know why that is.
RX330 Can Bus Broken
