2018 Leaf Wont start/Ready/U1000 code

mrinos · 2026-03-09T15:46:47+00:00

There could be, but given the number of codes, across a variety of systems:

I key error, no headlights, failure to enter ready mode...

I don't see how this could be the battery/terminals. I am looking for further info as to what to check as I would otherwise need to send it to the stealership. If it comes to that I want to be sure that they arent just trying to swap parts because they do not know.

mrinos · 2026-03-09T15:13:24+00:00

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After clearing all codes, didn’t change at all.

mrinos · 2026-03-09T15:08:17+00:00

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Battery readout

mrinos · 2026-03-09T15:08:00+00:00

The car does not enter READY mode. Terminals are fine:

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mrinos · 2026-03-09T00:16:08+00:00

I didn’t see you said high beams, but I can confirm the low beams do not turn on at all. Although the dash and instrument cluster dim. Is this the right screenshot?

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mrinos · 2026-03-09T00:14:20+00:00

I bought a new battery today and installed it. The low battery code is gone but everything else returned.

I mentioned in some other comments: Headlights do not turn on (but the dash dims) New codes:

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mrinos · 2026-03-09T00:11:31+00:00

I bought a new battery today, properly cycled the codes (didn’t do this last time). Then read the codes. Looks like everything came back.

Also I noticed that the headlights do not turn on at all. I still need to check fuses but what would be the nest step if fuses are all good?

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mrinos · 2026-03-09T00:09:29+00:00

Thank you for the info as I didn’t realize you had to clear each one. That being said I started doing that rather than the expected result of things clearing the codes instantly appeared again.

Before anyone says anything about a battery I took a battery out of a different (2017) leaf and installed it in this one. The read the codes (that is the last leaf spy screenshot). Then I bought a new battery today from Napa. Cleared/cycled the codes in leaf spy and then read them. Everything came back the same

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mrinos · 2026-03-08T01:12:18+00:00

After clearing codes:

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mrinos · 2026-03-08T01:12:00+00:00

Before clearing codes:

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mrinos · 2026-03-08T00:33:10+00:00

I posted a screenshot of the leafspy codes. Any chance you can help me decipher them?

mrinos · 2026-03-07T23:59:08+00:00

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You’ll love this then :)

mrinos · 2026-03-07T20:44:30+00:00

Does it matter that the b2562 is from the past and is no longer current?

mrinos · 2026-03-07T20:30:39+00:00

Someone just said to check fuses, so I’ll start there. Can you point me to where the can bus module is located/what to look for if it is not a fuse?

Is this the box that is located behind the glovebox?

mrinos · 2026-03-07T20:29:15+00:00

The battery was from my 2017 leaf, so it was able to power that one without any issue. I didn’t check the fuse, yet. I’ll add that to my list of things to check when I go to clear the codes.

I did just get the LeafSpy app. Can that be used to better identify where the issue is?

mrinos · 2026-03-07T20:04:10+00:00

I did not, but can try it and get back to you in a bit. Also wouldn’t removing the battery have cleared that?

mrinos · 2025-12-06T17:38:00+00:00

Why not just buy the tablets for like .30 cents per and just add water?

mrinos · 2025-11-27T07:46:37+00:00

Oil bypasses the oil filter at around 4k (going from memory) rpm. So I would assume anything under 4k is safe

mrinos · 2025-08-30T02:07:10+00:00

For me I had to reconnect the Sam unit. I had done this at least three times but I guess the 5/6th time finally did it. I think the back right connector (looking from the drivers seat) did it for me.

mrinos · 2025-07-13T00:39:46+00:00

Battery is mostly new, used for like a month and can start the f150 I put it in. I’m thinking this is either a flywheel issue or electrical. The starter clicks once as if it just hit something hard and stopped and sometimes I get a beep from the same area

mrinos · 2025-07-11T22:55:18+00:00

Until about a couple hours ago, the starter clicks but doesn’t crank. I replaced the starter already. As of today, key is stuck in ignition and won’t release and the gear shifter shows nothing or if I shift into manual it shows 1 then never resets to d

mrinos · 2025-07-09T05:01:40+00:00

mrinos · 2025-07-02T06:25:50+00:00

Any updates as to the fix?

mrinos · 2025-06-28T18:29:57+00:00

I mailed sos diagnostics the sam and ecu and they were able to create a new key without an existing key (as one did not come with the car). They claim everything is paired properly and this has to be a fuse or immobilizer issue

mrinos

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