Jeep Grand Cherokee

1993-1999 of release

Repair and operation of the car



Jeep Grand Cherokee
+ Cars of the Jeep Grand Cherokee brand
+ Settings and routine maintenance
+ Line six-cylinder engine
+ V8 engine
+ Procedures of the general and capital repairs of the engine
+ Cooling systems, heating and air conditioning
+ A power supply system and production of the fulfilled gases
+ System of electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of gear shifting
+ Automatic transmission
+ Transfer case
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
- System of onboard electric equipment
   General information
   Diagnostics of malfunctions of electric equipment of the chassis - the general information
   Safety locks - the general information
   Fusible inserts - the general information
   Chain breakers (thermal relays) - the general information
   The relay - the general information
   Check of a state and replacement of the breaker of indexes of turn / alarm system
   Check of serviceability of functioning and replacement of the universal understeering switch
   Check of a state and replacement of the switch of the ignition/cylinder of the lock
   Check of serviceability of functioning of the switch of heating of glass of a door of a back
   Check of a state and repair of a heater of glass of a door of a back
   Replacement of lamps of head headlights
   Adjustment of provision of head block headlights
   Removal and installation of cases of head block headlights
   Replacement of lamps
   Removal and installation of switches of head headlights and screen wiper of a window of a door of a back
   Removal and installation of the radio tape recorder and loudspeakers
   Removal and installation of the antenna
   Check of functioning and replacement of the motor of screen wipers
   Removal and installation of a combination of devices
   Check of functioning and replacement of a horn
   Description of the principle of functioning and diagnostics of a control system of the speed (tempostat)
   Description of the principle of action and diagnostics of the electric drive of lowering lifting of glasses
   The principle of functioning and check of the central lock and system of opening of doors without key
   Principle of action and check of serviceability of the electric drive of change of provision of seats
   Principle of action and check of serviceability of the electric drive of mirrors back look
   Safety cushion - the general information
   Electric circuits - the general information
   Arrangement and purpose of the relay and safety locks
+ Governing bodies and methods of operation



Check of serviceability of functioning and replacement of the universal understeering switch

All considered models are equipped with a safety cushion. The pillow constantly is in the "alerted" state and can work (to be inflated) at any moment at the connected battery. In order to avoid casual operation of a pillow (and receiving as a result of a trauma) every time when carrying out any works with components of a security system disconnect a negative wire from the battery. After a wire detachment from the battery before getting to work wait at least two more minutes (the system is equipped with the condenser which needs time for a discharge). In more detail about work of a security system see the Section Safety cushion - the general information.

The universal understeering switch is located on the left side of a steering column and serves as head headlights for inclusion of indexes of turn, cleaners/washers of a windshield and a blinking.

Check

Card of check of short circuit and scheme of placement of plugs of the breaker of indexes of turn and alarm system

View from the party of a casing of the plug.


Position of the switch
Short circuit between
Index of turn
Alarm system
Neutral situation
OFF.
12 and 14 and 15

Left

Left

Left

OFF.

OFF.

OFF.

15 and 16 and 17

12 and 14

22 and 23 with additional angular lamps

Right

Right

Right

OFF.

OFF.

OFF.

11 and 12 and 17

14 and 15

23 and 24 with additional angular lamps

Neutral situation

INCL.

 

11 and 12 and 13 and 15 and 16

Card of short circuit and scheme of placement of plugs of cleaners/washers of a windshield

Plugs of the socket of the understeering switch.

Position of the switch

Short circuit between

OFF.

Plugs 6 and 7

Delay

Plugs 8 and 9

Plugs 2 and 4

Plugs 1 and 2

Plugs 1 and 4

Low speed

Plugs 4 and 6

High speed

Plugs 4 and 5

Washers

Plugs 3 and 4

  • Resistance at the provision of the maximum delay has to lie within 270.000 - 330.000 Ohms.
  • Resistance at the minimum delay has to equal to zero on the maximum scale of an ohmmeter.

Card of short circuit and scheme of an arrangement of plugs of the switch of a blinking head headlights

View from the terminal party.

Position of the switch

Short circuit between

Passing beam

Driving beam

Dopoln. horn

18 and 19

19 and 20

20 and 21


 PERFORMANCE ORDER

  1. Remove the understeering switch (see item 1).
  2. By means of an ohmmeter or the sampler equipped with the independent power supply, being verified with the schemes provided in the end of the Head, check a continuity between noted plugs at various provisions of the switch (see an illustration). If the result does not correspond to the required conditions, replace the switch.

Replacement

 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. Uncover top and lower a casing of a steering column and the knee lock (Head Kuzov). Disunite the electric socket (what requires the special tool with a confidential head like TORX), then remove the switch from a column.
  1. Disunite the electric socket (A) of the universal understeering switch, having given for this purpose three sealed-up screws (V) and remove the switch.
  1. You make installation upside-down.