Technical Car/Motor Issues > Mazda Mazda 6 - 05 2.0 Starting problems with the key Specialists
Thread Author: Robin the Technician Replies: 6
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New Fri 23 Jul 10 10:14 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Robin the Technician
Hi

My Son has a problem when starting - when he inserts the key and turns to start, all he gets is a red key light on the dash that flash's. If he tries again, sometimes it will start without problems - other times he has to remove the key and try again and it works.

I did think that maybe the battery needed changing in the plip but it seems to unlock the car at quite a distance, so i think the battery is ok.

Anyone out there have any idea what it could be?

Thanks

Robin the Technician

I have posted this on 'the other' site, so apologies in advance if you may have replied to this question on there already.
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New Fri 23 Jul 10 10:43 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Number_Cruncher
What happens with the spare key?
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New Fri 23 Jul 10 13:47 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Robin the Technician
AFAIK he only has the one - but will find out tonight and get him to try it.

Thanks

Robin the Technician
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New Fri 23 Jul 10 14:34 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Dave_
Sounds more like the transponder receiver (a ring around the ignition lock, usually behind the steering column cowling) has developed an intermittent wiring fault.

The chip in the key that gets recognised by the car isn't battery powered - it's similar in function to the tags on expensive items in shops that set off the detectors by the door. Nothing to go wrong there.

(I've seen snapped key heads duct-taped to steering columns so that a cheaply cut copy key would still start the engine!)
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New Fri 23 Jul 10 21:52 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Robin the Technician
Hi Dave,
Thanks for the info. If I get a new transponder does it need programming by the dealer or is it just the bit that picks up the info so I can fit & forget. I think I'll look at the wiring plug and check to see if anythings loose.

Again thanks

Robin the Technician
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New Sat 24 Jul 10 21:47 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Robin the Technician
Hi all,
Just to update you...... I looked at his key and it looked like it came apart - so opened it up and it does indeed have a battery. This was changed and all is now functioning fine.

I thought I'd let you all know as feedback is valuable.

Robin the Technician
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New Sun 1 Aug 10 23:10 
 Mazda Mazda 6 - 05 2.0 Starting problems with the key - Robin the Technician
Hi All,
Further update.....
Son has been using the car for a week now without any further problem.

Case closed!!!

Robin the Technician
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