MIL code P0125 on 97 toyota camery v4, 109000 miles

hmmm ...this sounds interesting ..let me chk whats p0125 code criteria 1st..hold on...okay i'm back..i'm not at the shop ..so ihave to go to iatn on their site to check out ..this is easier..1st thing 1st....the reason u have this code is ..ur computer don't see the temp that is getting ur engine warming up...well good guess on ur mechanic....try another shop man..thats a parts changer ... what kinda mechanic don't verify their customer problem after repair and take their money then send the customer home?... if i am on this job..i will hook up a scanner chk what kinda of time frame and temp ur computer is getting and chk the appropriate signal from ur coolant temp sensor ..also measure it with a thermometer to pin point is is a sensor, a wiring or actually ur engine is runing too cool....then I'll recheck with a scanner to verify the degree of temp after the repair... if ur mechanic don't even have a generic scanner or don't know how to do this .... u must be finding these guy from a salvage yard ...try an ase certify shop......good luck man