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Sorry to dig up an old thread. I'm having this issue on my CTR. It's got sat nav. I can't get the clock to adjust to the correct time through the main unit. It seems to have gone wrong since changing both headlight bulbs and having removed the battery.
Any new fixes ideas on how to solve this.....ill give the battery disconnect a go
It's something to do with 2022 apparently some sort of bug, won't be fixed untill at least August supposedly.
This is what I've had to do as a temp fix 😫
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Hi,

I disconnected the battery on my 06 diesel Civic, something I’ve done lots of times with no problem. But after reconnection, my clock was showing the time +4 hours, so 8am was 12pm.

Checked the manual and it says the time is set by the Sat Nav GPS signal. There’s a clock adjustment setting in the Sat Nav menu but it makes no difference.

I disconnected the battery for a while today in the hope it’d solve it, but now it‘s showing 1am when it’s 4pm.

No idea where to start so I’m hoping someone has come across this before and knows the magic to do?

Thanks
This is a problem with all of the sat Nav versions now, Honda are apprantly trying to come up with a fix but that won't be until at least August.
This is what I'm doing untill it's fixed. Or you can disconnect/reconnect the battery at 1am.
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Here is a fix for owners of the West Europe White Disc 3.C0.

* Disclaimer *
I've installed this on my Sat Nav, but haven't fully tested that the clock works again. I currently have the hardmod installed, and to uninstall it would involve stripping out the dash and glove box to remove it, which I currently don't have the time to do. I'm pretty sure this should work, and I can verify that it didn't break my Sat Nav. However, do this at your own risk!

If you're the first one to try this and it works... congratulations, you're a pioneer!

What does it do?
For some reason Honda decided that 2003-01-01 is the beginning of time, and currently the Sat Nav clock is receiving times in 2002 (due to the GN-80 GPS module believing it's 2002 due to GPS week rollover). This patch changes Honda's beginning of time to 2002-01-01, which should mean the clock works again. - Well mostly, it won't adjust for DST as it will still think we're in a different month of the year.

Instructions
This will work with a CD-R/CD-RW/DVD-R/DVD-RW, personally I opted for the DVD-RW.
Copy the following files to a folder on your PC from the original Honda DVD:
A0000_00.MNG
PRG_INFO.MNG
UPDATE_APL.exe
UPDATE_APL_AVN_EU.exe
SMGA.bin
SMGA2.bin

Save "civicclock.txt" from the attachment as "civicclock.exe" in the same folder.
Run "civicclock.exe" - the SMGA.bin will be updated (check the timestamp has changed).
Delete "civicclock.exe".
Burn all the remaining files to a CD/DVD (on Windows make sure to use the "standard" mode and not the newer "USB like" mode).
Insert the new disc into the Sat Nav DVD drive. When you see the message about "Can't read disc" simultaneously hold down "Menu", "Map" and "Back" (the bottom left button that looks like an arrow looping back on itself).
On the diagnostic screen go to "Version".
Press the "Download" button, and wait until the disc is installed.
Once the system reboots you can remove the disc and put your original disc back in - and hopefully have a working dash clock!
I'm trying to do this but it starts to download then it says Please check your disc. Then it doesn't work, anything I'm doing wrong. I had to uncheck the Read Only option in the SMGA file and the time stamp changed when I ran then civicclock.exe file.
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There's a few reasons this can happen. As our disc drives are pretty old now they can commonly become unable to read certain discs as the laser unit degrades. Try using a different disc, preferably of a different type. e.g. if you're using a DVD-R then maybe try a DVD-RW, or a CD-R, or a CD-RW. Also, when writing the files make sure it's done on the minimum write speed available (usually 4x).
Cheers I'll try a different disc, I was using a CD-R. I did it on the maximum speed which I think was 24x maybe thats where it went wrong.
 
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