I had a loose battery cable. after fixing it, when i got in and started it, it asked for the pin numbers. we just bought the car two days ago so i did not know what they were. i tried to "guess" the code multiple times. i finally found that the stickers with the pins were stuck on some of the paperwork in the glove box. i put the code for the radio in at it works, but now the navi system goes black after first starting the car. the screen lights up for about 10-15 seconds then just goes black and nothing will show on it..{no messages, no info, no setup, no ac controls....}i unhooked the battery again for about 10 minutes and tried again, but had the same results. someone said on another forum that it might automatically lock the system after so many failed attempts?. i tried the "turn radio off and hold cd 1 and 6 button in then turn radio back on" but it just showed DIAG on the small screen on top. what do i need to do? i did eject the disc in the navi unit and reinsert it. i don't think its the fuse because the screen does come on when first starting the car.

 

If its locked out because of multiple pin attempts, I suspect it will reset after a certain time wait period.

 

Should i unhook the battery for awhile or just let it sit .

 

I'd just let it sit, but have no direct experience with this situation

 

10-4, that did the trick.. I waited two hours, with the battery still hooked up, and then it worked. thanks. I hope a loose battery post clamp was the culprit and it starts right up tomorrow morning. I have had the car two days and have already had a mental crisis.lol

 

Hey...am having similar problems with my RL 08 Navi. Am going to buy a new car battery cause the one i have is dead. So, when i get the new battery and anyone please tell me, what i need to do then.

 

Battery shops, at least here, have some kind back up devices what connects in the OBD connection and provide back up voltage to the system so that when they change battery nothing will be erased or needs to reset.
Some of my friends have done it by them self, using some jumper cables to provide the power to battery cables when they take of the old one and put in new one. In this case there is a danger to get ZAP effect and i dont recommend it.

 

I've changed my own batteryr 3 times. Just need radio and navi codes after you hook the new one up.

 

thought i heard there was a way to get your codes online without making a phone call, but not sure. maybe just need vin?

 

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