Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling systems, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
+ 8. Coupling and half shafts
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
- 12. Electric equipment
12.1. Safety locks
12.2. The burned-through crossing points
12.3. Automatic switches
12.4. Relay
12.5. Breakers of indexes of turns / alarm system
12.6. The combined switch
12.7. The switches installed on a steering column
12.8. Lock of ignition and drum of the lock
12.9. Switch of a heater of back glass
12:10. Heater of back glass
12:11. Radio receiver and loudspeakers
12:12. Antenna
12:13. Bulbs of headlights of head light
12:14. Headlights of head light
12:15. Replacement of bulbs
12:16. System of day inclusion of headlights
12:17. Engine of screen wipers
12:18. Instrument guard
12:19. Sound signal
12:20. System cruise control
12:21. System of the central lock
12:22. System of window regulators
12:23. Rear-view mirrors with the electric drive
12:24. Safety airbag
+ 12:25. Electrical circuitries
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The heater of back glass consists of a certain number of the horizontal heating elements which are sealed in the surface of back glass.
Small ruptures of elements can be eliminated, without removing back glass.
Check
| PERFORMANCE ORDER |
| 1. Turn a key in the lock of ignition and the switch of a heater of back glass in situation On. |
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2. At voltage measurement in the following two tests, wrap up a strip of aluminum foil around the probe of a negative wire of the voltmeter and press a foil to a wire a finger (1 probe of the voltmeter, 2 – a heater lattice wire, 3 – a foil). |
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3. Check tension in the middle of each of heating wires. If tension is equal to 5 volts, the wire in an order means (there is no gap); if tension is equal to 10 volts, the wire means it is broken off in a point somewhere between the center of a wire and the positive plug; if tension is equal to 0 volts, so the wire is torn between the center of a wire and weight |
| 4. Connect the negative probe of the voltmeter to the mass of the car. Indications have to remain same. |
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5. For detection of a point of a gap connect the positive probe of the voltmeter to the positive plug of a lattice of a heater, concern a foil in which will wrap up the negative probe, to a heater lattice wire as it is possible closer to the positive plug and carry out by a foil with the negative probe on a wire towards the negative plug. The point in which indications of the voltmeter will rise from zero to several volts is a point in which the wire is torn. |
| 6. If the heating element is not torn, the voltmeter will show lack of tension on a positive ring of a wire, and will show all increasing tension at approach by the negative end where it approximately will be equal 12 volts. |
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Repair
| PERFORMANCE ORDER |
| 1. Eliminate a rupture of a wire, using the repair set which is specially developed for this purpose which can be got on an auto-market or in autoshop. |
| 2. Before repair, switch off a heater and wait until it cools down within several minutes. |
| 3. Smooth out area of a gap a small emery paper a little, then carefully clear it alcohol. |
| 4. By means of an adhesive tape designate area of a gap. |
| 5. Eliminate a rupture of a wire, being guided by the instructions attached to repair set. |
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