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Does anyone know where to download the Civic X series electrical wiring diagrams?
Actually I am interested only in the Power distribution diagrams: I have a problem with both the accessory 12 Vdc plugs (front & rear) and it seems it's not a simple matter of fuses.
Thanks in advance
to xRiCeBoYx
Thanks a lot, the diagram is what I needed.
The model of my Civic 2018 in Europe is called Sport + and should correspond to the hatchback model (1.5 litre turbo) in the US, but some accessory might be different.
There are two 12 Vdc accessory sockets, one at the back of the gear lever tunnel and one in the trunk.
The front socket is protected by fuse B29 (20 A) of the under-booth fuse/relay box, while the rear one by fuse B10 (20 A) of the same box.
Probably Front Accessory Power Socket Relay in my car has two N.O. contacts, or there is also a Rear Accessory Power Socket Relay . Please note that fuse A2.4 is 60 Amp and protects only the Front Accessory Power Socket circuit.
In all cases, fuses B1 (10 A) and A2-2 (30 A in keyless version) are to be checked too, as well as relays ACC Relay Circuit and Front Accessory Power Socket Relay (and Rear, if existing).
Next monday I will go to Honda Assistance for the annual service: I'll let you know what they find out.
If you think a good mechanic is expensive, try hiring a bad one
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Re: Civic 2018 X Series Wiring diagrams
Try another 12v accessory. Could be the one you keep trying to use is bad internally or has blown its internal fuse (extremely common issues with consumer gadgets).
Try it on another car too.
.
Use a test light or voltmeter to see if your sockets actually have both power and ground.
to ezone.
I already made all these tests.
I connected to both sockets different appliances: mobile phone chargers, two different car coolers and even the Honda tyre repair compressor, but none of them worked.
The same devices all worked when connected to the lighter socket of my daughter's Toyota Aygo.
I also tested both Civic sockets with a voltmeter: no voltage is present.
The more likely cause had to be fuses B10 and B29, each of them protecting one of the sockets, even if the max. current sink of the above devices is less than 4 Amps compared to the 20 Amps of the fuses.
A preliminary check at Honda service last week did not find any blown fuse. Next monday they will carry out a deeper investigation.
In the meantime I found out the whole set of Civic X wiring diagrams: should anyone be interested in, I can give him the directions for free download.
They depict the US models wiring with only a 12 Vdc accessory socket, as xRiCeBoYx said.
While at this other link you can download the entire documentation as a unique zipped file (181 MB): https://www.mediafire.com/file/gypb3...anual.zip/file
The .rar file requires a password to be opened: type *CivicX* (don't forget the asterisks!)
The 69 titles of Contents at the first link directly correspond to the 69 SM_xx.pdf files that you extract from the .rar file: I'am attaching an Excel list.
If you think a good mechanic is expensive, try hiring a bad one
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Re: Civic 2018 X Series Wiring diagrams
Originally Posted by LuckyLuciano
to ezone.
I already made all these tests.
I might want to access the connector for each of the power outlets and see if B+ and grounds are both present.
The sockets usually have a small fusible link built in, if that's gone open circuit then no power will reach the center terminal in the socket
While at this other link you can download the entire documentation as a unique zipped file (181 MB): https://www.mediafire.com/file/gypb3...anual.zip/file
The .rar file requires a password to be opened: type *CivicX* (don't forget the asterisks!)
The 69 titles of Contents at the first link directly correspond to the 69 SM_xx.pdf files that you extract from the .rar file: I'am attaching an Excel list.
Lol, I've actually had that on my computer. forgot to share the source, so good on you for that. That's where I got that wiring diagram I gave you
I might want to access the connector for each of the power outlets and see if B+ and grounds are both present.
The sockets usually have a small fusible link built in, if that's gone open circuit then no power will reach the center terminal in the socket
I will check the sockets, even if it would seem to me a little bit strange if Honda had put fuses inside them and others in series in the fuse/relay box for protecting the same circuit
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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Re: Civic 2018 X Series Wiring diagrams
Originally Posted by LuckyLuciano
I will check the sockets, even if it would seem to me a little bit strange if Honda had put fuses inside them and others in series in the fuse/relay box for protecting the same circuit
Now that I think about this, the fusible link could be only on cigarette lighter sockets. I don't think I've looked closely at a plain power outlet to see if it has one.
