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  1. C

    LEAF CANbus decoding. (Open discussion)

    Yes, that's correct, and unlike some other distance and speed values whose units can change depending on region of manufacture or user display preference, this one always seems to be in km.
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    LEAF CANbus decoding. (Open discussion)

    LEAF active queries and replies use UDS over ISO-TP. Unfortunately the wikipedia documentation is incomplete, and the addresses and data bytes are not defined by the standard anyway, so are all informed guesswork. A simple example would be reading the odometer, where both query and reply each...
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    LEAF CANbus decoding. (Open discussion)

    I only had a 2019 LEAF briefly on a test drive, so didn't have much time to poke about, but using the cable I have for my 2016 LEAF and OVMS module, the only packets I logged were active requests and replies on addresses 7XX. I didn't see any routine CAR or EV bus packets on addresses 0XX--6XX...
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    Open Vehicle Monitoring System

    SOH percentage is reported in metric v.b.soh (MQTT topic v/b/soh). We currently get the total estimated capacity (in Ah) from bytes 33--35 of the active query 0x79b/0x7bb, then divide by the new capacity, which you must manually set with config parameter xnl.newCarAh (this defaults to 66Ah...
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    Reverse Engineer the Leaf and making it work good (tm)

    This is something I've been meaning to try doing too, but my early attempts did not go well. Just sending what I thought would be the innocuous 0x3E "Tester Present" seemed to cause major confusion to some devices! I see some UDS SIDs that do work:0x10 Diagnostic Session Control 0x14 Clear...
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    How to check for P3227 reprogram?

    We now know how to read the software version of various CAN-bus ECUs using the OBD port, so I should think it will be possible to work it out from one of these values. http://mynissanleaf.com/viewtopic.php?f=44&t=11676&start=130#p463562
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    Ecotricity Electric Highway - charging for charging

    Just received this email from ecotricity. Summary: Flat fee of £5 (GBP) for 20 miniutes charge, still free for Ecotricity energy customers. No more RFID cards, must use phone app. App shows live status info.
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    Active EV-CAN sampling: cell voltages, pack temperatures...

    That would be great, and I'm sure we can get further along that path, though I suspect reprogramming any intentional safety/security checks will be tricky. Do you have access to one? I wish I did - it would be so useful for checking many things. You mean query 79b, group 84? If that is also...
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    Active EV-CAN sampling: cell voltages, pack temperatures...

    Can you share what you are working on? I'd be happy to capture logs or run tests to help. Without invasively isolating individual modules, how do you work out which is which? Looking for serial numbers on my 2015 UK Acenta, I only get: 70e 84 70f 3437305931313458303230303439202020202020...
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    Active EV-CAN sampling: cell voltages, pack temperatures...

    Looking for module versions on my 2015 UK Acenta I get many more responses: *70e 83 70f 334e473941014106040401000002279966c6010000000080 3NG9A.A.......'.f....... *73f 83 761 334e4d304300410701005000000002400000010000000080 3NM0C.A...P....@........ *740 83 760...
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    Anybody mess with the CAN Commanded Torque Message ID 0x1D4?

    I checked all the packets I have logged on EV-CAN to identify valid 0x85 checksum bytes and agree that Collin has already found all the 8-byte ones (11A 1D4 1DA 1DB 1DC 55B), but there is also one shorter packet, 0x50C of length 6, which also seem to consistently have a valid checksum in the...
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    Query/response 71e/72e, 71d/72d

    I've been logging the CAN traffic on my 2015 Leaf for a while and looking for rare events, I noticed some interesting transactions which only ever occur on the CAR bus just as charging begins. It looks like there are a couple of active queries initiated by the car itself from 71e and 71d with...
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