# OVMS ZE1 (40kWh & 64kWh 2018+) Nissan LEAF CAN tap cable available..soon

**URL:** <https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798>\
**Category:** Hardware\
**Tags:** ovms\
**Created:** [5 March 2026 12:08 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798 "2026-03-05T12:08:03Z")\
**Posts on this page:** 11\
**Page:** 3

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**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [1 October 2026 11:36 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/45 "2026-10-01T11:36:46Z")

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Yes, that’s correct. Issues have now been worked out 🤞

We should have working cables in a few weeks

- sent from my mobile device

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**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [1 October 2026 22:10 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/46 "2026-10-01T22:10:49Z")

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Update 1st Oct:

We’ve finally been sent a working sample cable from the manufacturer, production can now start 🥳

 ![PXL_20261001_215151405.MP-COLLAGE](https://community.openenergymonitor.org/uploads/default/original/3X/4/9/497a416cc74ef164dee35a9e84272a43d66ce44e.jpeg)

Apologies for how long this took, there’s been some confusion that cost a number of prototypes since Nissan use a mirrored pin numbering on one of the connectors compared to the manufacturer of the connector 🙈

Thanks to feedback from @dmajwool the cable has been lengthened to make it possible to locate the OVMS module in a more convenient location.

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**Author:** ![jpx67](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/j/2bfe46/32.png) [@jpx67](https://community.openenergymonitor.org/u/jpx67)\
**Post date:** [2 October 2026 08:43 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/47 "2026-10-02T08:43:19Z")

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This is fantastic news. Hopefully I’ll have remote climate control back in time for the cold months!

One other request: on ZE1 Leafs, you have to disconnect the TCU for OVMS remote climate control to work. But to not lose the microphone, you have to connect a certain wire.

 ![Screenshot_20261002_094132_Chrome](https://community.openenergymonitor.org/uploads/default/original/3X/2/5/257825dbf5af7d9e75f664297b5847d82f43a682.png)

Is there any possiblity you could also manufacture a cable which can be connected between the existing parts which has the microphone wires and not the TCU wires? So that the microphone is retained without having to do permanent modifications?

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**Author:** ![rsiddall](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/9e8a1a/32.png) [@rsiddall](https://community.openenergymonitor.org/u/rsiddall)\
**Post date:** [2 October 2026 13:34 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/48 "2026-10-02T13:34:17Z")

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While we’re requesting additional cables, see the OVMS forum on [using the Leaf antenna with the OVMS](https://www.openvehicles.com/node/2435).

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**Author:** ![dmajwool](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/d/7ba0ec/32.png) [@dmajwool](https://community.openenergymonitor.org/u/dmajwool)\
**Post date:** [2 October 2026 14:05 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/49 "2026-10-02T14:05:01Z")

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> [@jpx67](#):
>
> on ZE1 Leafs, you have to disconnect the TCU for OVMS remote climate control to work. But to not lose the microphone, you have to connect a certain wire.

Hi,

That’s not quite correct. You can leave the TCU in-place and connected, but to allow the OVMS remote climate control you must REMOVE two wires from the TCU connector as written in your quote box.

See [Nissan Leaf/e-NV200 — Open Vehicles documentation](https://docs.openvehicles.com/en/stable/components/vehicle_nissanleaf/docs/index.html#disabling-the-tcu-for-remote-climate-control)

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**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [2 October 2026 14:11 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/50 "2026-10-02T14:11:29Z")

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> [@jpx67](#):
>
> Is there any possiblity you could also manufacture a cable which can be connected between the existing parts which has the microphone wires and not the TCU wires? So that the microphone is retained without having to do permanent modifications?

The Nissan TCU is redundant since Nissan has shut down the connectivity services. Therefore, there’s no risk in disconnecting the CAN lines from the TCU. For some bizarre reason Nissan routed the microphone via the TCU, and therefore you will need to lead the other wires of the TCU connected to retain the microphone function.

OVMS will work without this modification, but the OVMS remote climate function requires this mod.

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**Author:** ![jpx67](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/j/2bfe46/32.png) [@jpx67](https://community.openenergymonitor.org/u/jpx67)\
**Post date:** [2 October 2026 17:13 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/51 "2026-10-02T17:13:36Z")

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My apologies - that’s what I meant. A short (5cm) cable to go between the two which has only the microphone wires connected would be great, if possible.

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**Author:** ![dmajwool](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/d/7ba0ec/32.png) [@dmajwool](https://community.openenergymonitor.org/u/dmajwool)\
**Post date:** [2 October 2026 20:22 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/52 "2026-10-02T20:22:02Z")

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@jpx67 What advantage do you see in removing the TCU itself? Why not just leave it where it is and remove those two cores?

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**Author:** ![jpx67](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/j/2bfe46/32.png) [@jpx67](https://community.openenergymonitor.org/u/jpx67)\
**Post date:** [11 October 2026 14:54 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/53 "2026-10-11T14:54:29Z")

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It means there won’t be loose wires hanging around anywhere

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**Author:** ![DJ570](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/dj570/32/39279_2.png) [@DJ570](https://community.openenergymonitor.org/u/DJ570)\
**Post date:** [19 October 2026 06:06 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/54 "2026-10-19T06:06:14Z")

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How soon is this cable expected to be possible to order? Should I look into making one myself, or is it available very soon? Freezing temperatures this morning here in Sweden… ☺

Please put me on the waiting list if that is still an option.

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**Author:** ![glyn.hudson](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/glyn.hudson/32/35003_2.png) [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Post date:** [19 October 2026 09:17 UTC](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798/55 "2026-10-19T09:17:02Z")

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I reckon it will be at least another couple of weeks

[Previous page](https://community.openenergymonitor.org/t/ovms-ze1-40kwh-64kwh-2018-nissan-leaf-can-tap-cable-available-soon/29798.md?page=2)
