Toyota Land Cruiser 100/Amazon, Lexus LX 470

since 1997 release

Repair and operation of the car


Toyota Land Cruiser, Amazon, Lexus LX470
+ Identification numbers of the car
+ Governing bodies and methods of safe operation of the car
+ Settings and routine maintenance of the car
+ Engine
+ Cooling systems of the engine, heating of salon and air conditioning
+ A power supply system and production of the fulfilled gases
+ Engine electric equipment
+ Control systems of the engine and decrease in toxicity of the fulfilled gases
+ Gear shifting box
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Search of causes of failures of electric equipment
   Safety locks - the general information
   Fusible inserts - the general information
   Chain breakers - the general information
   The relay - the general information and check of serviceability of functioning
   Digital tire of data of CAN
   Check of serviceability of functioning and replacement of the breaker of indexes of turns / alarm system and switch of the last
   Replacement of the switch of indexes of the turn/switch of the modes of functioning of external lighting fixtures
   Replacement of the switch of ignition and lock of blocking of a steering column
   Check of serviceability of functioning and replacement of the switch of the modes of functioning of screenwashes
   Replacement of lamps of head headlights
   Adjustment of the direction of optical axes of head headlights
   Removal and installation of block headlights
   Replacement of lamps
   Removal and installation of the audio system and its loudspeakers
   Removal and installation of the antenna of the radio receiver
   Check of serviceability of functioning, replacement of an electric motor of the drive of screen wipers and pump of washers
   Check of serviceability of functioning and replacement of the switch of heating of back glass
   Check of serviceability of functioning and recovery repair of a heater of back glass
   Removal and installation of a combination of devices
   Check of serviceability of functioning and replacement of horns of a horn
   The electric drive of external rear-view mirrors - general information and check of serviceability of functioning
   Control system of speed (темпостат) - general information, check of serviceability of functioning of components
   The electric drive of window regulators - general information and check of serviceability of functioning
   The uniform lock and system of remote control of door activators - general information and check of serviceability of functioning
   Running fires of daylight (DRL)
   Safety cushions - the general information
   + Schemes of electric connections - the general information

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The uniform lock and system of remote control of door activators – general information and check of serviceability of functioning

General information

Operation of individual activators of locks of each of car doors is the basis for functioning of system. The system consists of switches of management, door activators and a connecting electrical wiring. Failure diagnostics of system is limited to checks of a condition of contact connections of an electric chain and serviceability of operation of door activators. Performance of deeper checks should be charged to specialists of car service. The control unit of system of the uniform lock is located under the dashboard, to the right of the assembly block of safety locks/relay.

Functioning of the uniform lock happens due to operation of the bidirectional electromagnets located in the doorway of the car. The switch of management has two provisions: It is LOCKED and is OPENED. On models of the last years of release equipped with system of remote control, switches give a signal on the module of management which, in turn, influences electromagnetic switches, or driving electric motors of door locks. Depending on a starting position of the switch there is a change of polarity of power supply of activators. On models of earlier years of release switches are connected directly to electromagnets of door locks.

On some models the system of the uniform lock is combined with system of the anticreeping alarm system.

If it is not possible to find the reason for refusal during the checks described below, the car should be driven away on car repair shop.

Check

 PERFORMANCE ORDER

1. First of all always check a condition of protection of a contour. On some models protection is provided with a combination of safety locks and breakers of a chain.
2. Popereklyuchayte switches of management in both directions at the killed engine. Listen to the clicks accompanying operation of electromagnets of door activators.
3. In the absence of clicks check serviceability of giving of tension for switches. If giving of food is broken, check a condition of an electrical wiring on the site of a chain between the corresponding switch and the assembly block of safety locks. If food moves regularly, check serviceability of a condition of the switch (conductivity distribution).
4. Replace switches in which conductivity is absent in both provisions. If the switch is serviceable, however clicks of the relay are not heard, check a condition of an electrical wiring between the corresponding switch and an electromagnet. Make necessary recovery repair.
5. Check a condition of grounding of switches and the control unit.
6. At refusal of only one of activators remove the panel of an internal upholstery from the corresponding door of the car (see the Head Kuzov) and check serviceability of giving of tension for an executive electromagnet, switching the switch of management. One of wires has to be powered in one of provisions of the switch, the second – in another.
7. If food moves regularly, replace an electromagnet.
8. If violation of giving of food takes place, check for break and short circuit an electrical wiring on the site of a chain between an electromagnet and the relay, and also a condition actually of the relay.

Most often wire breakage happens on the site between a door and the body panel.