I have a 92 940 turbo as well My fuses are located behind the ashtray. If you lift up under neath the ashtray it should pop out and on the back it will tell which fuse it is I want to say 23? but I am not sure as I am not near my car.
It's on top of the steering column behind the instrument cluster.
Could be valve guides and seals clean crankcase breather .poss. backpresure
1) Check the owner's manual. There is a diagram indicating what each fuse is responsible for. 2) When accessing the fuse box, check the back side of the parts you are removing for a fuse box diagram. The same information is found on the back of one of these parts in my Volvo.
The abs works electrically. There should be sensors at each wheel, and a fuse just for the abs system. Check the fuse first.
If relay & fuse OK then you will need to remove overdrive solenoid from the side of the gearbox and clean it - gunk can build up around the small holes stopping the flow of auto fluid therefore stopping the gearbox going into overdrive. It can happen intermittently until orifices block completely .
Open the fuse panel under the hood near the engine, and remove the yellow 60 amp fuse, this will disable the motor to the ABS system.
relay is inside the gas tank by the fuel pump the fuel pump relay is found in the fuse box behind the front ash tray it is white are blue most are white cost in the UK £18 in the USA do not know. one of two fuel pumps one in the tank the other is under the car in a small cage one is a fuel filter and the other is a pump. goggle Volvo relays to see it.
It's located behind the ashtray, just remove the ashtray and the fuse box can be found, the relay plugs into the fusebox
The question you ask is too involved for a proper answer. You may want to go to a car parts store, or book store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
The Volvo 240 never had air bags or antilock brakes until 1990. The '90, '91, '92 & '93 240's only had a drivers side air bag, not dual air bags. Those were the only years the 240's had an air bag. In '92 only the 240 GL had ABS. In '91 ABS was a factory option available on a limited number of cars. In 1989 and earlier years there were no air bags or ABS on any 240's. The 240 was discontinued in 1993. That year Volvo introduced the 850 which had dual air bags and antilock brakes standard. Then, in 1995, Volvo introduced side impact air bags. By 1998 Volvo added the head protecting air bag and side air curtains which set the standard for safety today. For details on any model in any year check http://www.edmunds.com/
Radio fuse