Subaru Legacy/Outback

1999-2003 of release

Repair and operation of the car



Subaru of Legasi, Autbek
+ Cars Subaru Legacy, Outback
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Electric equipment of the engine
+ Manual box and differential
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Specifications
   Search of causes of failures of electric equipment
   Safety locks - the general information
   Chain breakers - the general information
   The relay - the general information and check of serviceability of functioning
   Details of laying of an onboard electrical wiring
   System of additional safety (SRS) - the device and the principle of functioning
   Diagnostics of malfunctions of SRS
   Removal and installation of the SRS components
   Control system of speed (tempostat) - the device and the principle of functioning
   Check of serviceability of functioning of components and problem diagnostics of a tempostat
   Removal, check of a state and installation of components of a control system of speed
   Combination of devices - the general information and the principle of functioning of components
   Problem diagnostics of components of a combination of devices
   Removal, service and installation of a combination of devices, check of a condition of components
   Heating of back glass and rear-view mirrors - the general information, check of serviceability of functioning of components, recovery repair of a thermoelectric heating element
   Heating of brushes of screen wipers - the general information, check of serviceability of functioning of components, recovery repair of a thermoelectric heating element
   Removal, check of a state and installation of switches of management of functioning of the electric drive of regulators of window regulators
   The electric drive of rear-view mirrors - check of serviceability of functioning
   Removal check and installation of the switch of management of functioning of the electric drive of external rear-view mirrors
   Removal, check of a state and installation of the switch of management of functioning of the electric drive of the top hatch
   Removal, check of a state and installation of the combined understeering switches
   Check of serviceability of functioning of electric motors of the drive of screen wipers, removal, check and installation of the operating relay of a back screen wiper on the Legacy Station wagon/Outback models
   Check of the relay and switches of lighting and alarm devices
   Removal and installation of illuminants, replacement of lamps
   Removal, check of a state and installation of horns and switch of a horn
   Check of a state and replacement of contact group of the switch of ignition
   The uniform lock - the device, the principle of functioning, diagnostics of malfunctions
   Removal, check of a state and installation of components of the uniform lock
   System of an immobilization of the engine - the device, the principle of functioning, diagnostics of malfunctions
   Removal and installation of components of system of an immobilization of the engine
   Removal and installation of assembly of the radio receiver
   Removal and installation of loudspeakers
   Check of a state and recovery repair of the window antenna of the radio receiver
   Removal, installation and check of a condition of the antenna amplifier of the radio receiver
   Removal and installation of the lighter
   + Schemes of electric connections









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Heating of back glass and rear-view mirrors - the general information, check of serviceability of functioning of components, recovery repair of a thermoelectric heating element

General information

 Heating of external rear-view mirrors joins along with heating of back glass of the car.


When transfer the switch of heating of back glass / rear-view mirrors there is a short circuit on the mass of the electromagnetic relay of a chain of giving of food to the corresponding thermoelectric heating elements. The indicator lamp of inclusion of heating is built usually in in the switch button, but can settle down and on an instrument guard. The relay of a heating system is in the saloon assembly block of safety locks/relay.

The working element of a heater of back glass represents a horizontal lattice from the conducting threads pasted on an internal surface of glass.

Check

Heating switch

Check serviceability of functioning of the switch of heating for what remove the control panel functioning of systems of heating/air conditioning. Disconnect an electrical wiring and check correctness of distribution of conductivity between plugs of the corresponding contact sockets from the back party of the panel in both provisions of the switch (see table 28).

Tab. 28 Check of serviceability of a condition of the switch of heating of back glass / rear-view mirrors


Thermoelectric heating element of heating of back glass

Turn the ignition key in the situation ON and include heating of back glass.

In order to avoid damage of conducting threads of a heating element wrap up voltmeter probes aluminum foil.

 The voltmeter should be transferred to the mode of a direct current (DC).


Press the positive probe of the voltmeter to the positive plug of a lattice of a heating element, press the negative probe to the grounding plug. The device has to register battery tension, otherwise check a condition of a safety lock, the switch and a connecting electrical wiring. If tension in norm, however, part of the heater does not work, pass to the following stage of check.

Measure tension in the central part of each of lattice threads. The indication in 5 ÷ 6 V testifies to serviceability of a condition of a thread. The zero indication speaks about existence of break between the center of a thread and a positive side of an element. Overestimate of the indication twice (10 ÷ 12 V) happens in the presence of break between the center of a thread and a negative side of an element. Serially check each of lattice threads.


In the absence of breaks connect the negative probe to the mass of the chassis and repeat check, - indications should not change, otherwise violation of quality of grounding of a lattice takes place.

For localization of break press the negative probe of the voltmeter to the negative plug of a lattice of a heating element. The positive probe which is wrapped up by a foil start probing conducting threads of a lattice, moving from giving of food to weight. In a break point instrument reading has to reduce from several volts to zero.

Recovery repair

Restoration of integrity of conducting threads is made by means of special two-component electrowire paste like Dupont No. 4817.

Before starting recovery repair of a lattice of a working element switch off a heater and let's an element cool down within several minutes.
Slightly smooth out the damaged thread site felt, then carefully wipe it alcohol.

Paste two strips of an adhesive tape along the thread site which is subject to restoration. Carefully mix epoxy paste with a hardener (follow the instructions enclosed in a set). Apply the received structure on the damaged site (with an overlap approximately in 20 mm on edges of the intact thread).


Final polymerization of a compound happens in 24 hours after which protective strips of an adhesive tape can be removed from glass.