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How do I unlock a Volvo 40v radio Sc 836?

The radio stopped when I worked on the battery terminals that were loose

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Posted on Jan 02, 2017

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SOURCE: unlock a volvo sc-816 radio

The SC-816 is made by MITSUBISHI and the code cannot be calculated for free from anywhere on the Internet.

Try your Volvo Main Dealer....or a Decoding service who will plug it into a laptop to read/recode the memory chip (EEPROM)

Howver many Volvo Dealers offer the code for free provided you can quote the car VIN number and the radio serial number

Posted on Sep 03, 2009

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kel1guy2002
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SOURCE: code for audio system sc-805 premium sound system

Sir We can not by law pass security codes to you. The reason we can not do so is that any thief could steal someones audio equipment ask for the code and profit from your loss. The only legal means of getting the code is to contact the source of purchase for the equipment be it a retailer or auto dealer. They are supposed to verify the VIN & registration of the vehicle with the serial number of the audio equipment. I apologise for not answering your question but this is the best information I can legally pass you.
Thanks for choosing FixYa,
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Posted on Jul 21, 2011

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1 Answer

Battery problems. First the radio stops working, then a few days later the car will not start.


You may have loose or corroded terminals at the battery, that will affect the alternator's ability to charge, affect all electrical components including the radio. So you end up with radio and starting problems.

Mar 03, 2015 | 2001 Chrysler Concorde

1 Answer

How do I unlock a radio Sc 836 on Volvo 40V? Its indicating off


Sounds like you activated the theft protection on the radio. Usually there is code in the owners manual that you can enter to reset the radio.

Nov 17, 2014 | Cars & Trucks

1 Answer

2002 volvo s80. My radio display lights stop working so I can't see the radio but it still works and the stearing wheel radio controls stopped working cruise still works though what could cause that


the wiring from the wheel controls may have come loose at a connector so i'd try making sure all connetors are pushed home , even behind radio , have you had any work done recently to the vehicle ?

Oct 24, 2014 | 2002 Volvo S80

1 Answer

My 2000 Volvo v70 xc's radio is not working. I


Your radio has been replaced, not uncommon for that year and the SC series of radios. The dealer will need to remove the radio (real easy to do) and has to get 2 numbers from the tag on top and query them through the Volvo DMS system. Note that if you enter the wrong code 3 times the radio will say OFF and you will have to leave the key in position 1 for up to 4 hours till the radio anti-theft resets and you can try again.

Jan 02, 2013 | Cars & Trucks

1 Answer

My volvo stalled on me this morning and then shut off completly. I have charged the battery twice in the last two weeks with new ones. I have jump started it several times before and it did start but this...


SOUND LIKE ALTERNATOR NOT WORKING.FIRST TURN OFF RADIO TO KEEP FROM LOCKING IT OUT WHEN DISCONNECTING NEGATIVE BATTERY.REMOVE ALTERNATOR HAVE IT TESTED.BEFORE REMOVING ALTERNATOR MAKE SURE DRIVE BELT HAS NOT WORKED LOOSE OR BROKEN.

Nov 04, 2011 | 2002 Volvo S80

1 Answer

1994 940 Volvo wagon turbo has intermittent electrical problems. Blinker on dash stays lit. Dash lights go out but will come back. Radio stopped working then both radio and CD player stopped working all...


It truly sounds like a loose or faulty/corroded ground wire. Almost 99% of the electrical problems I have experienced with Volvo's are loose wire related. There are a number of ground wires underneath the hood grounding the engine. However my first suspect would be the connections on the alternator and battery.

Hope this helps.

Sep 18, 2011 | 1994 Volvo 940

2 Answers

Hi, Can anyone help please, I have an old freelander 1 1999.. just replaced the battery and it has a philips R700 casetter player which no requires the unlock code. Can anyone help me please? Serial...


Hi,

The code for this radio is 4 3 9 3

Please leave a vote to show this free solution is correct.

As I have limited capacity to share free codes - for others needing a code for a car radio - I recommend the site at this link. Cheapest on the net and I use them often for other radios that I repair so I can vouch for them as being cheap, fast and accurate.

Hope it helps. Thanks for using FixYa.

Sep 02, 2011 | 1995 Volvo 850

1 Answer

In my 2000 volvo s80, the radio stop working and the door lock button and the dome lights are intermittent. I checked all the fuses and are all good.


Try resetting the electrical system by locking and unlocking the doors with your key in the driver's door 5 times in a row. A service manager at a Volvo dealer showed me this after they did some work on my car and on the way home the sunroof wouldn't close.

I have a 2001 S80 that I have to reset the electrical system like this every time I disconnect the battery. All kinds of stuff stops working...sun roof, door locks, lights, radio, windows, etc. Just reset like described and everything should start working again.

Good luck.

Sep 19, 2009 | 2000 Volvo S80

2 Answers

Unlock a volvo sc-816 radio


The SC-816 is made by MITSUBISHI and the code cannot be calculated for free from anywhere on the Internet.

Try your Volvo Main Dealer....or a Decoding service who will plug it into a laptop to read/recode the memory chip (EEPROM)

Howver many Volvo Dealers offer the code for free provided you can quote the car VIN number and the radio serial number

Sep 03, 2009 | 2000 Volvo S40

1 Answer

VOLVO S40 DOESNT START OCCASIONALLY


sounds like you need a new battery, it probably isnt running enought cranking amps to start your car, try a different battery and it should start fine

Dec 11, 2008 | 2000 Volvo S40

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