Rav 4 Sat Nav

[sooty23]

I wonder if anyome can shed any light onto this please.

If the Battery is disconnected/dies on my rav, is there a code I would need to enter to get the satnav up & working again?

Just had issues with another vehicle in the family and it made me wonder. I was not given a code from the dealer when I bought it a couple of years ago. Its an 07 and I am worries it's getting to the age when problems will start. I'd be lost without the bluetooth and radio (i have it on so I cant hear the cabin rattles) but the satnav part itself is useless anyway. would appreciate any ifo.

[CharlieFarlie]

99% sure there is no code to activate the CD / Sat Nav /Radio ect.. I know Fords for instance have them but I have not seen anything like this in the handbook for My car which is a 2006 with the TNS700 unit....

Wee Charlie.

[shcm]

I'm 100% sure.

You will need the DVD in the unit when the Battery is reconnected. It's not just maps on there, it loads its internal software off it in order to work.

When the Battery is reconnected it will go through and display a boot up sequence that you don't normally see. Let that finish before you power off the vehicle.

Welcome to TOC by the way.

[CharlieFarlie]

I'm 100% sure.

You will need the DVD in the unit when the battery is reconnected. It's not just maps on there, it loads its internal software off it in order to work.

When the battery is reconnected it will go through and display a boot up sequence that you don't normally see. Let that finish before you power off the vehicle.

Welcome to TOC by the way.

CCCOOOrrrrrrr I wish I was clever !! Superb information that Mate !! well worth remembering.....

Wee Charlie.

[MarsKy]

My old T180's Battery died on me and I didn't get a new one in place for well over a week.

When the new one went in, the sat nav loaded up without any problem. The RAV even remembered radio settings and telephone book.

And no codes were ever required.

[CharlieFarlie]

My old T180's battery died on me and I didn't get a new one in place for well over a week.

When the new one went in, the sat nav loaded up without any problem. The RAV even remembered radio settings and telephone book.

And no codes were ever required.

I think if You read SCHMs post above He explains that the information is stored on the DVD so it would would it not ?.............

Wee Charlie.

[shcm]

Let me clarify that a bit.

Nothing that you set up on the unit gets stored on the DVD - It's read only.

With the permanent Battery supply disconnected it will maintain certain things. If I remember correctly it will maintain things like map position, paired mobile phones. Clearly it has some form of non-volatile memory.

I'm fairly certain it does not remember radio preset frequencies, if the permanent power supply (battery) feed is removed for any length of time. At least that's what happened when I removed the B9004 unit I had in my vehicle and also with another identical unit I repaired.

I suppose it sounds odd that it does not remember everything, but perhaps the design is a bit modular, i.e. tuner design was carried over from earlier stuff with nav functions bolted in and the preset memory is handled by the tuner portion with the other data being handled by the sat nav portion.

In Marsky's case, it is not clear how long the Battery was disconnected for. If it was for a fairly short period there will be capacitors inside the internal power supply chain to do such things as smooth and guard again micro-cuts in supply voltage. A volatile memory will take very little current and these capacitors will hold up the memory's power supply (and so maintain the data) for a while.

Also, The Battery may have died as far as starting the vehicle is concerned, but I would expect the total cell voltage to drop to at least 7V or 8V (possibly lower) before it affected the retention of data in the memory.

[MarsKy]

I think if You read SCHMs post above He explains that the information is stored on the DVD so it would would it not ?.............

Wee Charlie.

Good grief Charlie - let it go...

[MarsKy]

In Marsky's case, it is not clear how long the battery was disconnected for. If it was for a fairly short period there will be capacitors inside the internal power supply chain to do such things as smooth and guard again micro-cuts in supply voltage. A volatile memory will take very little current and these capacitors will hold up the memory's power supply (and so maintain the data) for a while.

Also, The battery may have died as far as starting the vehicle is concerned, but I would expect the total cell voltage to drop to at least 7V or 8V (possibly lower) before it affected the retention of data in the memory.

It was disconnected for a few days (the Battery was removed from the car for charging). I was amazed that the radio settings were still there.

[Big Kev]

Let me clarify that a bit.

Nothing that you set up on the unit gets stored on the DVD - It's read only.

With the permanent battery supply disconnected it will maintain certain things. If I remember correctly it will maintain things like map position, paired mobile phones. Clearly it has some form of non-volatile memory.

I'm fairly certain it does not remember radio preset frequencies, if the permanent power supply (battery) feed is removed for any length of time. At least that's what happened when I removed the B9004 unit I had in my vehicle and also with another identical unit I repaired.

I suppose it sounds odd that it does not remember everything, but perhaps the design is a bit modular, i.e. tuner design was carried over from earlier stuff with nav functions bolted in and the preset memory is handled by the tuner portion with the other data being handled by the sat nav portion.

In Marsky's case, it is not clear how long the battery was disconnected for. If it was for a fairly short period there will be capacitors inside the internal power supply chain to do such things as smooth and guard again micro-cuts in supply voltage. A volatile memory will take very little current and these capacitors will hold up the memory's power supply (and so maintain the data) for a while.

Also, The battery may have died as far as starting the vehicle is concerned, but I would expect the total cell voltage to drop to at least 7V or 8V (possibly lower) before it affected the retention of data in the memory.

It has taken 37 years for shcm to clarify ma wife is actually a Printed Circuit Board....she too has a volatile memory, which can result in my having micro-cuts....

Stonking "electronics for eejits" as usual mate....even me and Charlie understood this, but still prefer our 8 track quadraphonic tape systems.

Big Vinyl Kev

[shcm]

It has taken 37 years for shcm to clarify ma wife is actually a Printed Circuit Board

I'd better not ask whether you test your good lady with a flying probe then ;)

Stonking "electronics for eejits" as usual mate

Ta.

but still prefer our 8 track quadraphonic tape systems

Tape? Nasty non-linear medium that needs bias applied to overcome said limitation.

Big Vinyl Kev

Vinyl? Wallpapering? Nah, can't be doing with all that RIAA equalisation/de-emphasis/filtering - call it what you will. They should leave the low freqs unattenuated as nature intended - then you could have hours of fun watching the needle jump out of the grove on all the "bassy" bits.

If it sounds good to you, that's all that matters

[Big Kev]

It has taken 37 years for shcm to clarify ma wife is actually a Printed Circuit Board

I'd better not ask whether you test your good lady with a flying probe then ;)

Stonking "electronics for eejits" as usual mate

Ta.

but still prefer our 8 track quadraphonic tape systems

Tape? Nasty non-linear medium that needs bias applied to overcome said limitation.

Big Vinyl Kev

Vinyl? Wallpapering? Nah, can't be doing with all that RIAA equalisation/de-emphasis/filtering - call it what you will. They should leave the low freqs unattenuated as nature intended - then you could have hours of fun watching the needle jump out of the grove on all the "bassy" bits.

If it sounds good to you, that's all that matters

Buy a Scottish Turntable then and "Hear The Difference..."....stand by yer postbox tae....one binary number reader will maybe be making its way to That England (apparently they are called CD Players....)

It's chucked it again....10 years old....£1100.00....that's £2.00 a week...ah feel cheated. Manufacturer (British) does not support that model any longer....should have bought Scottish, again....

Big Kev