Honda Civic VI Liftback: Pioneer 1400UB Radio Memory Reset Issue - Lack of 12V Power

Hey - how are you ?. I hope I can get to the cause from the forum.
I enclose a description of the fuses, what not to look for

I'm not sure how to ask a specific question, so I'll describe everything from the beginning.
Since the purchase of the car (Honda Civic VI Liftback), the radio has no memory. After removing the key, the radio resets. The radio is a pioneer 1400ub. According to the manual, I read that from the radio the yellow first wire is just from the memory - to which you need to bring 12v without a key.

So, taking the meter in my hand, I started looking for a cable that will be 12v without a key in the ignition. Unfortunately nothing. There is 12v on one, but when the key is in the ignition. There's one insulated there red wire - but there is no tension at all.
Next ... in the cube all the wires to the loudspeakers are connected, so I only have 3 - black (mass), yellow (12v with a key) and red which has no tension.

After a moment's thought, I thought maybe the red wire that's 12v without a key . Unfortunately there is no tension at all.

When looking for fuses by description, I noticed a fuse there - it is "ECM, clock, radio memory". I thought that the problem was solved - that this fuse was blown. It turned out to be operational (there is a short circuit). Not only that, the clock in the car generally doesn't work either. And to make it not so cool, 10A is inserted there, even though it should be 7.5A.

Is there anyone able to guide me what I can check next, where can I look for the cause?

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I looked for another manual, and here is that fuse correctly marked 7.5 with the number 32

http://media.honda.co.uk/car/owner/media/manuals/Civic5D/pdf/62st320.pdf

You must replace the yellow wire at the radio cube with the red wire. Yellow is the memory (backup) of the radio and it must be powered continuously so that the radio does not lose its settings. Both of these wires are + but one is constant, the other from the ignition switch - currently, rather, every radio (or at least the majority of them) on these cables has connectors that allow them to be quickly changed, because the problem like yours is quite common.

My friend probably didn't read on

Hello, I had the same problem with the Mazda 323f and the electrics are similar to the Honda civic, for me the blue wire with a red stripe is responsible for maintaining the memory and it also powers the watch, after the initial measurements with the meter it turned out that there is a break in the circuit somewhere, so I dismantled all plastics under the steering wheel, I disconnected the entire wiring harness leading to the radio and it turned out that there is tar on the connecting wires, the cables were pressed in some small sleeve, of course I threw this sleeve out and simply soldered these cables.

I just had a suspicion that there was a circuit break somewhere. Sometimes 1-2 dashes appear on the watch, but then they disappear. As if there is actually no correct contact somewhere.

I also thought that through this 10A fuse somewhere the wire could burn out?

Ok, so I will check the circulation inside thoroughly. Thanks for the hint, Pzdr

And try, buddy, to measure whether there is voltage on this fuse from memory backup, if it is as I wrote that the problem probably lies in the place where the wires are connected in the bundle.

You made the description very confusing, but I'll try to ask.

monuai wrote:

According to the manual, I read that from the radio the yellow first wire is from the memory - to which you need to bring 12v without a key [b]

Indeed, on the yellow from the radio - it should be constant + 12V, on the red + 12V "keyed", black must go to the weight of the car (-12V).
Are all 3 cables connected to the installation?
What cable shows + 12V after inserting the key?

monuai wrote:

One is 12v but when the key is in the ignition

What cable is it (color), is it connected to the radio - what color?

monuai wrote:

There is one red [b] isolated wire - but there is no tension at all.

What does it mean insulated? Nowhere connected? Connected to the radio (what color) or for installation? Does the voltage show 12V after turning on the radio?

monuai wrote:

I noticed a fuse there - It is "ECM, clock, radio memory". I thought that the problem was solved - that this fuse was blown. It turned out to be operational (there is a short circuit).

The fuse is complete, but is there voltage on it (12V in relation to the mass before and after the fuse? I mean fuse No. 10 in the box under the hood.

monuai wrote:

the clock in the car generally doesn't work either.

What does it mean generally not working? The clock does not work, does not hold memory and resets like a radio? It comes with 12V /
Please also check if there is 12V on the cigarette lighter socket - constantly or "on the key"?

But it doesn't really matter now I think ...

yellow - + 12v with key
red - probably there should be +12 constant, but there is no tension on it
black mass.

The main problem is that I miss DC on this one wire. And the fuse is intact.

monuai wrote:

And the fuse is intact.

Check that there is voltage on it (before and after the fuse). Just in case - with and without a key.
PS
Please answer my questions from the previous post.

There is voltage before and after the fuse. There is no voltage on the cable, regardless of whether there is a key or not. Is the engine fired or not. \

A break in the installation, the faster it will be to give a new plus, of course, through the fuse.

Ireneo wrote:

A break in the installation, the faster it will be to give a new plus, of course, through the fuse.

This was what I was getting at. It would be closest to the cigarette lighter. But for this you need to work with the author of the topic, who has probably ceased to be interested in it.

Hi,

So I can let go of the plus from the lighter and use it to keep the memory? You say through a fuse? (only that the lighter is probably already on the fuse)

monuai wrote:

Hi,

So I can let go of the plus from the lighter and use it to keep the memory? You say through a fuse? (only that the lighter is probably already on the fuse)

If it is fixed there you can without a fuse.