Hello there
I found this in a suzuki forum
After connecting the audio security system to the battery, "CODE" will flash on the display.
Enter the proper security number into the unit, using the preset buttons No. 1 through 8.
For example, if the security number is "1234":
Press the preset button No. 1. "CODE" will disappear and "1 --- " will appear on the display.
Press the preset button No. 2, and "12 -- " will appear.
Press the preset button No. 3, and "123- " will appear.
Press the preset button No. 4, and "1234" will appear and flash three times.
The audio system will function and will transfer to the radio. If the incorrect security number is XXXXX into the unit, "Err" will appear followed by "CODE" and there will be several audible beeps. If this happens, repeat the security entering procedure beginning with Step 2.
Hope this helps.
If code doesnt work then it is dealer, sorry.
SOURCE: radio forenza code
Here are part of the codes:2252 3116 3451 2152 4362 4316 4513 4362 1156 2145
The rest of the list was on the site right under this one on Googgle. I have a 2004 forenza and it saved me driving 70 miles and paying $50.00
SOURCE: overheatin gin my 2004 suzuki forenza change the therstat in it
Most likely cause of this is a clogged thermostat. Especiallly if you've ever used a sealer in the past, the thermostat clogs with age and a bad thermostat will tend to back up and fill your reservoir tank. Best of luck with this situation and I hope you've found this post a solution to your problem. All the best!
Greg
SOURCE: 2004 suzuki battery died now the radio wont turn on
make sure you have put on all conectors that came of when you changed the battery, if this ok, you may have a blown fuse at the back of the radio
SOURCE: owners manual
You can get the code from the dealer but call first, if there going to charge you a crazy amount, try 0000 first then try www.radio-code.com. They can get your radio working again for less then the dealer. Keep me posted and let me know if you got your radio activated again.
SOURCE: Replaced battery, radio asking for code? Where or
Try these:
4316
1156
5624
3241
2151
2145
5241
4524
4513
3451
3346
5436
4362
6361
1165
5843
2152
2512
2453
3451
4316
2253
3241
4353
2152
5613
1651
1554
4136
1325
3116
5324
5344
1636
1341
3265
4345
5513
5613
3265
3251
6645
5256
4513
6654
3644
2136
1641
1634
1326
2621
3413
3462
2346
2235
5632
4325
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