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
   Specifications
   Electrohydraulic control system - the general information, purpose of basic elements
   System of self-diagnostics - the general information and the principles of functioning
   Diagnostics of the general condition of AT
   Problem diagnostics of AT
   Removal and installation of transmission assembly
   Replacement of elements of a suspension bracket of transmission assembly
   Replacement of an epiploon of a casing of lengthening of AT
   Check of a state, adjustment and replacement of the sensor switch of permission of start
   Removal and installation of the forward sensor of the speed (VSS)
   Removal and installation of the back sensor of the speed (VSS)
   Removal and installation of the sensor of turns of the turbine of the hydrotransformer
   Removal, service and installation of valvate assembly
   Replacement of electromagnetic valves of switching, executive electromagnetic valves and sensor of temperature of ATF
   Replacement of the ATF filter
   Removal and installation of the module of management of transmission (TCM)
   Removal, installation and check of a condition of lines of a path of cooling of ATF
   Removal, service and installation of components of the lever of the AT selector
   Removal, installation, check of a state and adjustment of a driving cable of the AT selector
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



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Diagnostics of the general condition of AT

Refusals of AT most often happen on one of the following five reasons:

a) Decrease in efficiency of return of the engine;
b) Violation of adjustments;
c) Malfunction of hydraulics;
d) Mechanical damages;
e) Failures of the onboard processor / its alarm chain.

Problem diagnostics always has to begin with the simplest checks: estimate the level and a condition of ATF (see the Head Routine maintenance), check adjustment of drives of gear shifting and a butterfly valve. Further, carry out trial runs of the car for the purpose of determination of efficiency of the made corrections. If it was not succeeded to fix a problem, it is necessary to drive away the car on car repair shop for more detailed diagnostics with use of the special equipment. The description of some of symptoms of violations of functioning of AT is provided in the Section devoted to problem diagnostics of knots and systems of the car at the beginning of the present manual.

Primary checks

 PERFORMANCE ORDER

 At service of TCM try not to damage SRS electrical wiring laid on proximity and painted in yellow color!


 At voltage measurement and resistance of modules of management (ECM, TCM) or information sensors the pointed metal hairpin with a diameter less than 0.64 mm will help to come into high-quality contact, - the hairpin should be entered into the socket more deeply than on 6.5 mm.


1. Check tension and density of electrolyte of the battery (see the Head Elektrooborudovaniye of the engine), - nominal rates make not less than 12 V and not less than 1.260 units, respectively.
2. Check reliability of a tightening of bolts of fastening of the tire of grounding of transmission, - the demanded effort makes 13 Nanometers.
3. During a short trip warm up transmission up to the normal working temperature.
4. Check the ATF level and lubricant liquid of forward differential (see the Head Routine maintenance), in case of need make the corresponding adjustments.
5. Check serviceability of functioning of the lever of the selector. Its transfer to each of possible provisions should not be followed by foreign sounds, existence of points of jamming is also inadmissible.

 When carrying out this check the engine has to be switched off.


6. Check serviceability of operation of control lamps of switches of the POWER and HOLD modes for panels of facing of the lever of the selector.
7. Check installation of turns of idling of the engine (see the Head of the Power supply system and release). In case of need drive away the car on car repair shop for performance of the corresponding adjustments.

 If the engine not as it should be, it is not necessary to start performance of primary checks of transmission until the corresponding corrections are made.


8. Make sure of correctness of adjustment and smoothness of the course of a cable of the drive of switching.

Diagnostics of leakages of ATF

General information

The majority of leaks easily come to light at visual check. Repair usually consists in replacement of the corresponding defective epiploon or laying. If it is not possible to reveal a leak source during external survey, act as it is described below.

First of all it is necessary to exclude probability of a mistake in definition of the nature of leak. It is not necessary to confuse ATF to motive oil or brake fluid (transmission liquid usually has dark red color).

For identification of a source of leak make short (some kilometers) a trip, then park the car over the outspread blank sheet of a cardboard. Later a couple of minutes the source of leak can be revealed in the wake of the liquid dripping on a cardboard.

Attentively examine the suspected site and the surface surrounding it, paying special attention to joints of the interfaced pro-masonry surfaces. For the purpose of expansion of a viewing angle use a pocket mirror.

If it is not possible to reveal a leak source still, carefully wipe a surface of the suspected site the rags moistened with solvent, then dry it.

Make one more short trip, this time often changing movement speed, then again examine the cleaned suspected site.

After identification of a source of leak, it is necessary to define and eliminate the reason of its development, and only then to pass to performance of necessary recovery work. Replacement of the damaged laying will not lead to desirable result if also the defect of the interfaced surface which led to a sealant exit out of operation is not eliminated (so, the deformed flange needs to be aligned).

In the following subsections the most typical reasons of development of leakages of ATF and a condition which have to be executed that there was no recurrence are listed.

 Part cannot be executed from the listed requirements without use of the special equipment. In this case the car should be driven away on car repair shop.


Leaks through pro-masonry surfaces

Periodically examine the transmission case pallet. Check existence on the places and reliability of a tightening of fixing bolts, watch that on a cover there were no traces of mechanical damages (deformation of the pallet can lead to failure of the valvate assembly located in transmission).

Via the pallet excessively hard tightening of fixing bolts, violation of passability of the ventilating line, mechanical damage of a sealing surface of a case of transmission, laying destruction, and also emergence of cracks or porosity of walls of a case are among the possible reasons of development of leaks. If laying of the pallet or a case of transmission is formed by a sealant pillow, the probability of the wrong choice of type of the last is not excluded. Through laying of the pallet can lead to leaks also overflow of a case transmission liquid, or increase of pressure of ATF.

Leaks through epiploons and cuffs

The most typical reasons of an exit of epiploons of transmission excessively high ATF level/pressure, violation of passability of a ventilating branch p