I am unaware if there is/are any valuation entity that does vehicle. i can think of 4 sources of valuation:
1. your insurance firm - they would have some information on the current valuation of your ride. normally its on the high-side, due to coverage, terms etc. (higher valuation, higher premium u pay)
2. your bank - get in touch with the auto financing dept. based on the model and year of make, they'll b able to advise
3. market value - thru car trading websites (carlist, mudah etc.), publications (auto-trader, on the road, etc.)
4. own valuation - more of a willing buyer-willing seller kinda situation. what u think its worth, and wait until a buyer who agrees to pay what u want
thats all i can share. do add if anyone knows how to.
OR
a help fm uncle G reveals a few, such as
https://www.mycarinfo.com.my/ or
http://www.carbase.my/tool/car-market-value-guide