Here is my story....i had my ABS and check engine lights on and took the car to the dealer for diagnostics ( i have a 2000 V70 Non turbo) and $150 later he tells me i need to replace my ABS module and ECT sensor....His quote to do this close to $2K. In any case with the help from this and other forums i get the ABS module replaced for less than 500 and i am happy as can be...But wait the following day my coolant sensor turns on....i check my Coolant level and it is way down....there seems to be some leakage....take it back to the shop and he tells me my water pump is out.......C'mon now...
So i get the timing belt and water pump replaced for another $600 ( it was due i guess at 110K miles) and then i am happy..

But wait...the coolant light still turns on......Now even though the tank is full the light remains on...even though i did not have that problem before....

Any ideas why this could be happening??? Is it the Coolant Level Sensor? How can i test to make sure that is the problem and not some leakage??I did notice that the coolant level drop some ...

Appreciate your help...cant spend any more money

 

Probly a bubble in the cooling system.Explain's the level.The Low level sensor could be bad.Very easy to replace.
Part number-30741155
Price is roughly 33 bucks.

 

I would do the sensor ad go from there. That's an easy and inexpensive fix.

 

Thanks for the suggestion...i will change it and let you know if it works!