The battery light is for low alternator output voltage.
Try testing the alternator output using a miltimeter and if its less than 13 volts your alternator isn't putting out what it should.
If it has low output check the belt tension and all wire connections before replacing alternator
Get the alternator checked before your battery goes dead.
On your 1989 MERCURY TOPAZ, the BACK-UP LIGHT SWITCH is: UNDER HOOD, DRIVER SIDE, LOWER ENGINE AREA, MOUNTED ON TOP OF TRANSMISSION
According to my Chilton's Auto Repair Manual : For a 1989 Mercury Topaz ( front wheel drive ) ( 15.9 US. gallons )
The 1989 Mercury Topaz has a curb weight of 1,183 kilograms. This translates into an Imperial Weight of 2,608 pounds.
1 - 3 - 4 - 2 ( for the 2.3 liter 4 cylinder in a 1989 Mercury Topaz ) The distributor rotar turns CLOCKWISE
Not quite sure what you are asking, but if you are changing the solenoid, then disconnect the battery first.
185 - 70 r - 14
It's in the gas tank.
Its on the bottom of the oil pan.
Activating your four-way flashers on a 1989 Mercury Topaz is very easy. All you have to do is reach under your steering wheel and pull the only handle down there.
Have to take off the head, it's there.
where is the fuel reset swith for a 1989 mercury topaz