Problem with Remote CS-555

[devlekhu_98]

Hi All,
I brought a Car Toyota-Camry. Came with CS-555 installed..
3-4 Months before starting and lock-unlock was alright.
Suddenly it stopped working, I think I saw 8-9 times flashing parking lights..

My problem is :
Remote works perfect (Lock-unlock and car-start) from inside car or just near-by front door. But it's not working even 2-3 ft away from car.

Any Solution/Suggestion ?

I also don't have manual for it..
Anybody have manual ?

If you can send it, its appreciated..

I changed Battery, three different kinds (Energizer, Duracell and regular) no result.

Thank you

HITESH