The overdrive problem on a 1995 Mazda Protege is due to a failing spring in the end housing inside the transmission. If you replace the spring with a new or used factory spring the problem will re occur. You must use a revised version to permanently fix this problem. I have seen salvage yards advertise this overdrive unit. What a scam. Even the brand new factory unit will fail, so obviously a used one will also fail. You must contact a transmission shop, they will probably have seen many of these in their shop and will have the part number of a revised unit.
The overdrive relay is located in back of the fuse box which is behind the ashtray.
It is important to know where the parts are within a car. The horn relay in a 1993 Mazda Protege is found in the cars fuse box.
there is a 10 amp fuse marked console in the fuse box that actually provides power to the overdrive cut of swicth and overdrive relay
The relay is H270 above the fuse block next to the clutch pedal.
Remove the fuse from the fuse box. Or remove the relay.
engine compartment fuse box
The main relay is in the fuse panel located under the hood on the driver's (left) side. Original equipment relay is green. Schematic decal is on the inside of the fuse box cover.
Where is the headlight relay in 1992 Mazda Protege?"
look under hood the in fuse box on passger side
it should be behind the ash tray in the fuse box that is located there.
Behind the ashtray--google "Volvo 940 overdrive relay" for detailed answers on how to get to it. It's beyond the fuse panel, the white one with black print on the right.
Inside the fuse box under the hood in the front on the driver's side.