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



Description of the principle of functioning and diagnostics of a control system of the speed (tempostat)

Tempostat serves for keeping of speed of the car at the chosen level, exercising control of the provision of a butterfly valve by means of the motor of the servo-driver and a driving cable connecting the motor to draft of a butterfly valve. The servo-driver motor, the sensor switch of stoplights, the coupling switch, switches of management and connecting wires and vacuum hoses are a part of system. Check of some of characteristics of system demands use of the special equipment and lies outside qualification of the average amateur mechanic. The description of the main procedures allowing to reveal common problems of functioning of a tempostat is given below.

Components of a control system of the speed (tempostat)


 PERFORMANCE ORDER

  1. Find and check a condition of a safety lock of a contour of system.
  2. Ask the assistant to include stoplights, make sure of their operation (tension of stoplights and, in certain cases, from the switch of coupling deactivates a control system of speed).
  3. If stoplights do not work, or, on the contrary, there is no their shutdown at a brake pedal otpuskaniye, correct a cause of failure and repeat check of a tempostat. Check serviceability of the switch of coupling (The head Stsepleniye and the transmission line).
  4. Visually examine the vacuum hoses connected to the servo-driver and check a condition of draft of management between the servo-driver of a tempostat and draft of a butterfly valve. In case of need make replacements.
  1. Check a state vacuum (And) and electric (In) sockets of a tempostat.
  1. Check a condition of knot of connection of a tempostat with draft of a butterfly valve (shooter).
  1. In work of a control system of speed signals of a set of sensors are used. On these models the sensor of speed is located in transmission (RKPP) or the transfer case. Give a bolt and disconnect the sensor, then, rotating the sensor watch indications of the digital voltmeter (The head of the Power supply system and production of the fulfilled gases) connected to it. If resistance at rotation of a cable does not change, the sensor is faulty.
  2. Make trial runs of the car, checking serviceability of functioning of a control system of speed. In case of existence of any problems drive away the car in dealer office for performing full diagnostics and repair of system.