Every driver has at least once faced the fact that frost freezes on the windows when the air temperature drops below zero. As a result, visibility is impaired. It is especially bad when the rear window freezes, looking at which some drivers orient themselves when leaving the parking lot. To prevent frost from forming, the engineers came up with a rear window heating system. As a rule, it is not installed at the factory. It is installed by the drivers themselves, if necessary.
Necessary
- - wide terminals;
- - bolt terminals;
- - wires;
- - circuit breakers;
- - relay;
- - block under the relay;
- - glass heating switch;
- - bolts;
- - rubber tubes and nut
Instructions
Step 1
Remove the ground wire from the battery. This wire is always connected to the negative pole of the battery.
Step 2
Remove the instrument panel. Further, instead of a plug, you must put the existing rear window heating switch in this one.
Step 3
Attach the relay behind the instrument panel opposite the tachometer. Then make the wiring, choosing the length of the wires relative to the dimensions of your car (experienced craftsmen advise taking the length with a margin). It is highly undesirable to ignore the relay setting and connect the wires directly. Otherwise, all the contacts will burn out, the switch button will melt and you will have to redo everything, only, of course, not forgetting to put the relay on.
Step 4
Your pendant fuse has a looped wire on it. It must be cut, stepping back from the edge about six centimeters. On the side of the short end of the wire, it must be crimped with a wide terminal and connected to the fuse. On the other hand, also crimp with a wide terminal and insert the wire into the relay block.
Step 5
Pull two wires from the heating switch, with a cross section of about one and a half square millimeters, attach one to the fuse (connect after the fuse), the other to the relay block.
Step 6
Attach the relay next to the fuse wherever you want.
Step 7
Remove the left side front and rear sills to route the wires to the rear window. This is pretty easy to do. On domestic cars, the thresholds, as a rule, can be unscrewed with an ordinary screwdriver.
Step 8
Remove the trim on both sides of the rear window.
Step 9
Connect the wire to the glass itself on the right.
Step 10
Connect the short wire on the right to the rear window with one end and the other to the ground of the battery.
