Question about 2005 Volvo S40

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Can't start 05 volvo s40d, message reads "key error"

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 I had same problem put the key in the other way it worked for me , suggested by my breakdown truck guy.

Posted on May 28, 2009

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This is because your car takes a coded key that the ignition reads. The ignition does not recognize the code on your key so it wont start. This is due to faulty ignion, faulty ECM, or you are using a replacement or valet key.

Posted on May 16, 2009


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On a Volvo 2007 what means the red triangle

It's usually followed by error message on the display in the instrument cluster. It might be low battery, open door while driving, hand brake on while driving, gearbox temperature too high...
Press "read" button on the left stalk to check current messages.

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It's most likely car key hole issue.

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Help, my dash reads "key error- try agian" and the

try the spare key ,failing which call the tow truck and take it to a dealer ,encrypted software

Nov 09, 2010 | 2005 Volvo S40

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2005 Volvo Start Problem

There's actually an issue with the software in the Central Electronic Module that can cause this glitch on the '05-'06 models. There is an updated CEM software that fixes this. What happens is that it drops the key codes from EPROM memory. Sometimes they'll start again, sometimes they have to be towed to the dealer. The new CEM software cures the problem.

The message you should see is "start prohibited, try again". It's a known problem. This has to be addressed at the dealer as they are the only ones that can download the software. Tell them to reference tech net note 36-59.

No recall yet. It's just a tech note at this point. The reason looks to be that it's not a large enough number of cars affected. We get them in here, just not that often. The tech note was issued late in 2007 so it's been out there a while. I've personally seen more '06 models with the issue than '05s. '05 was the year they completely changed the central electronic module. A lot of the relays are now built onto the circuit board and cannot be replaced separately. It's a completely different setup than the '01 to '04 models

Hope helps to solve it.

Jul 27, 2010 | 2005 Volvo S80

1 Answer

2005 S40 wont start. Message says key error?

Do you have the remote, i.e. The deadlock system is activated and deactivated using the remote control key fob, which allows the driver to open the car as they approach. It seems you have activated the steering lock which is for preventing thieves to make a getaway. Use the remote to deactivate it and then try starting the car.......sodeep
P.S. The security system is a built-in feature of this model

Jun 12, 2009 | 2005 Volvo S40

1 Answer

Valet key will not start volvo s80. turns in

thats because your regular key probably has an electic connection to the car so go to your volvo dealer and they should be able to clear anything up or replace it with a key that will work

Jun 09, 2009 | 2005 Volvo S40

2 Answers

Car won't start

Your immobilizer is enabled. Try locking/unlocking the doors with the remote five (5) times, this should remedy.

May 31, 2009 | 2006 Volvo S40

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2001 Volvo S60 2.4 won't start

try to start your car with the valet key instead of master should start right up problem is master key.

Jan 28, 2009 | 2001 Volvo S60

1 Answer

Does not start. message on left of dash reads: " start prevented try again" - hv tryed locking & unlocking, shifting transmission to neutral, message continues what are yr thoughts,...

If you have a 2nd key, try it. Obviously, if it works, the first key is bad. If it doesn't work, it may be the antenna in the ignition.

Sometimes disconnecting the battery for a few minutes and then reattaching it works.

If you don't have a 2nd key, you'll most likely have to tow it into a dealer.

Jul 27, 2008 | Volvo S60 Cars & Trucks

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