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It could, of course, be a coincidence, but if the problem coincided with the heavy rain, then it's worth investigating - possibility of water damage in the loom and connectors, which can be a temporary short, or a permanent failure due to longer term corrosion.

First of all, are you getting power to the OBD socket?

What sort of a scanner are you using, a generic OBD type, or Honda HDS?

The key flashing is obviously telling you that the immobiliser is not happy, whether that is connected to the loss of diagnostic connection,  not sure. HDS should normally be able to connect to the immobiliser, where most generic types only connect to the engine ECU, so you might have more luck with that. The HDS uses a different protocol to connect to the immobiliser module, on different OBD pins.

It's a sensible plan to try to get the diagnostics working, and go from there, but you may need Honda HDS to diagnose the immobiliser problem.

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Honda Jazz Mk2 2008-2015 / What are the chances...
« Last post by JRHPNG on September 15, 2019, 01:22:15 AM »
All 3 side by side in the car park
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took my ecu apart and everything inside looks new
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did that already, and all of this happened 2 weeks ago
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I had a similar experience with another car when the ventilation ducts were flooded on to the electrics. I had no diagnostics or electrical response at all.

Let the car stand and dry out for 72 hours and see if it starts. You might be able to charge the battery while you are waiting? You may be surprised. If the car starts check that the drain hose for the Air-con is clear and the evaporated water is able to drain away under the car (and not overflow onto the electrics). You ought to be able to use a piece of wire from underneath the car to gently unblock any debris which is blocking the evaporator drain pipe.
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Honda Jazz Mk2 2008-2015 / Re: Air con stopped working.
« Last post by springswood on September 14, 2019, 08:31:10 PM »
It could also still be the relay. This isn't part of the compressor assembly, it lives in the fuse box (I think).
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Honda Jazz Mk2 2008-2015 / Re: Air con stopped working.
« Last post by culzean on September 14, 2019, 07:01:07 PM »
you are looking at the wrong pulley,  the one immediately below the alternator with 3 bolt heads showing is the water pump IIRC.  The one you want is even lower than that one, you will need a decent torch to see it and it has 4 flat rivet heads showing linked together with a flat spring diaphragm thingy, which is the spring that holds the clutch plate open,  the solenoid overcomes this spring to engage the drive to compressor.
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Honda & Other Honda Models / Re: Honda e
« Last post by Jocko on September 14, 2019, 06:04:52 PM »
The car will be perfect for my needs, but I realise it will not suit everyone. For 99.9% of my motoring, a two seater is all I require. As for boot space, if it holds my shopping then it is big enough for me. The boot of my Jazz is full of empty supermarket trolley bags, and most of the time I just lay the shopping on the back seat, on my way home from the store! I would have an MX5 if I could get in and out of it!!!
Robert Llewellyn certainly likes the One Pedal option. And the performance. What I cannot understand, is why the entire roof is glass when you can only see out of one small section? Perhaps it is simpler, and allows a smooth, aerodynamic roof.
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Honda & Other Honda Models / Re: Honda e
« Last post by Ralph on September 14, 2019, 05:22:53 PM »
The German guy talks about the electric motor being under the "hood", but it is not. It is in the rear, as the "Fully Charged" video, and this older video makes clear.


Yeah I thought that it also explains why the boot is so small, too small for my liking.
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Honda & Other Honda Models / Re: Honda e
« Last post by Jocko on September 14, 2019, 04:47:00 PM »
The German guy talks about the electric motor being under the "hood", but it is not. It is in the rear, as the "Fully Charged" video, and this older video makes clear.

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