My 01 c320 been playing up 2 weeks / had new battery ,thought problem solved. now it will turn over but not start. next replaced crank sensor and ok for a couple of days. not uesd for 48hrs . Today car is totally dead .. keyless entry in op ,so used manual entry. Nothing electrical works . Ignition lock in op/ no interior or exterior lights . Will not start as key won't turn. Any ideas?

SOURCE: keyless entry problem . key

What year is the Suzuki?

SOURCE: Keyless Entry and Remote

I have had this problem take you drivers door put your key and un-lock from the out side with key (NO) then open the door push un-lock from the inside button and then set from you remote and it should set if not push un-lock then lock and then do the un-lock with the key. Let me know if that works. what my car did was locked from the inside and I had the problem were it would not work till I un-locked from the out side plus I had to go to radio shack and change the battery from the control.
Hope good happens.
Nikki2913

SOURCE: keyless entry for 05 Kia Sportage

i have a kia optima my keyless quit working to.I took it back to the dealer and the said it was common on a lot of kia models.They replaced the module for the keyless remote,that seams to have fixed it.

SOURCE: remote keyless entry will not unlock vehicle, but interior elec power works, NO ENGINE!

I had the same problem with my 2007 Sahara Unlimited. I'll make a long story as short as possible. For a number of years my son ran a Chrysler / Jeep dealership and I contacted him (I bought my Jeep from him before he got out of the business) and he told me this is a sporadic problem with the Wrangler line. To the point of calling him I had tried everything and nothing worked...insert key, turn, nothing...all electrical worked, lights, power windows, radio, etc, etc. He told me to disconnect the negative power connection on the battery for a second or two then re-attach. Insert key, engine starts, everything works as advertised.

Essentially, my son told me this "re-boots" the system. For whatever, and to his knowledge, never explained by Jeep, this fix works but no idea as to why it happens in the first place.

Hope this is of some help...though I suggest that there may be more "fixes" to this problem.

Regards...

SOURCE: My 2000 Mercedes Benz S500 is dead- electronic key does not

It's not that unusual for a battery to fail that soon, and the "no lights, no nothing" says that it's the battery again. Your best bet at this point is to pull the battery and take it to the point of purchase for testing. They should either replace it under warranty or charge it for you. After you replace the battery you should have the charging/electrical system checked for possible shorts or power drains.
BillB