Jeep Grand Cherokee

1993-1999 of release

Repair and car operation



Jeep Grand Cherokee
+ Cars of mark Jeep Grand Cherokee
+ Options and routine maintenance
+ Рядный the six-cylinder engine
+ Engine V8
+ Procedure of the general and engine major repairs
- Systems of cooling, heating and air conditioning
   The general information
   Antifreeze - the general information
   Check of functioning and thermostat replacement
   Check of serviceability and replacement of the fan of system of cooling and муфты its couplings
   Check of functioning and replacement of the block of the gauge of temperature of a cooler
   Removal and installation of a radiator and broad tank of system of cooling
   Check of functioning of the water pump
   Removal and installation of the water pump
   Check of serviceability of an electric contour and replacement of components of the motor of the fan of a heater and air conditioner
   Removal and installation of the block of the fan of a heater
   Removal and installation of assemblage of management by a heater and air conditioner
   Removal and installation of the heat exchanger of a heater
   Check of serviceability and service of systems of heating and air conditioning
   Diagnostics of system of automatic control in temperature (automatic telephone exchange) without its removal from the car
   Removal and installation of the accumulator (store) of a central air of air
   Removal and installation of the compressor of a central air of air
   Removal and installation of the condenser of a central air of air
   Removal and installation of a tube of the calibrated jet
   Removal and installation of the evaporator of a central air
+ The power supply system and release of the fulfilled gases
+ System of an electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of a gear change
+ Automatic transmission
+ Distributing box
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of an onboard electric equipment
+ Controls and operation receptions

e65f60b7


Diagnostics of system of automatic control in temperature (automatic telephone exchange) without its removal from the car

Diagnostics of serviceability of functioning of system of automatic telephone exchange is impossible at the disconnected battery. If you for any reason are going to disconnect the battery, before make the given check.

Some of models of cars of mark Jeep Grand Cherokee are equipped by system of automatic control in temperature (automatic telephone exchange) which structure includes also the digital indicator (display) which has been built in in the panel of devices. The system allows to make набортную (without removal from the car) diagnostics of its malfunctions of entrance and target contours and to define as flowing, so refusals taking place earlier. By refusals taking place earlier are meant such which have withdrawn by the current moment, they usually result from infringement of quality of electric contacts, an event during performance of procedures of service of any other components.

The control panel of system of automatic telephone exchange (below) in comparison with the standard manual panel equipped with three rotating switches (above).

In a diagnostic mode the same part of a working surface of the screen of the display which serves for temperature indication works.

The top left part of the screen of the display, usually serving for temperature indication (two figures) serves in a mode of diagnostics of malfunctions of system (it is shown in drawing - is absent the arrow specifying in the little man (see an illustration above)) for deducing of codes of malfunctions (with 0 on 99).

If in automatic telephone exchange system there is any failure, on the display each time at ignition inclusion appears (once the error message («ЕR») lights up).

For an input in diagnostics mode simultaneously squeeze out buttons "EXPERTS" and «RECIRC» and, keeping their pressed, turn on one click clockwise the management handle a temperature mode. Thus will join all screen of the display (segmentary check) (will light up).

After отпускания buttons in the left part of the screen there will be a digital code «00» (a choice of level of check).

Now press one (any) of mentioned above buttons. On the screen there should be a figure representing the sitting person that speaks about an input in diagnostics mode. If in memory are stored any of 64 (with 1 on 64) malfunction codes, they will be displayed. Write down the highlighted codes and verify them with a card of malfunctions (see the table more low), revealing the sites of system requiring more detailed check. In case of presence of codes with 25 on 29 before starting to the further checks it is necessary to replace the module of management of automatic telephone exchange.

Codes of current refusals will be erased in process of entering of corrections. For removal of codes of taking place earlier and self-liquidated malfunctions taking place earlier it is necessary to squeeze out both buttons on the panel and to keep their pressed during not less than 3 seconds About deleting of codes occurrence on the screen of the display of two horizontal hyphens testifies.

Diagnostics of system of automatic telephone exchange allows to reveal malfunctions both entrance, and the day off of its contours. However, if the mechanic-fan cannot find the taking place reason in a database of codes of malfunctions (see a card of codes more low), composers of the Management recommend to the owner of the car to address for consultation and the help in dealer branch.

Card of codes набортной diagnostics of system of automatic control in temperature (automatic telephone exchange)

Malfunction code

The malfunction description

Place in a contour

0
There are no refusals Normal functioning
1
Breakage in a contour The ambient temperature gauge
2
Breakage in a contour The temperature gauge in car salon
3
Breakage in a contour Entrance contour of the photo diode
4
Breakage in a contour Input of the fan of the forward panel/management the fan
5
Breakage in a contour Input of management of a mode of the forward panel
6
Breakage in a contour Contour of a feedback mixing air заслонки
7
Breakage in a contour Feedback contour заслонки modes
8
Too high feedback Contour of a food of the fan of a heater/fan
9
Short circuit in a contour The gauge of the surrounding temperature
10
Short circuit in a contour The temperature gauge in car salon
11
Short circuit in a contour Entrance contour of the photo diode
12
Short circuit in a contour Input of the fan of the forward panel/management the fan
13
Short circuit in a contour Input of management of a mode of the forward panel
14
Short circuit in a contour Contour of a feedback mixing air заслонки
15
Short circuit in a contour Feedback contour заслонки modes
16
Too low feedback Contour of a food of the fan of a heater/fan
17
Error of switching of an input Input of width of impulse PWD
19
заслонка does not react Feedback contour заслонки modes
20
заслонка does not react Contour of a drive of an actuation mechanism mixing air заслонки
21
Too a low speed заслонки Feedback contour заслонки modes
22
The course заслонки is too great Feedback contour заслонки modes
23
Too a low speed заслонки Contour of a drive of an actuation mechanism mixing air заслонки
24
The course заслонки is too great Contour of a drive of an actuation mechanism mixing air заслонки
25
Error of the data of calibration The given calibrations and CPU
26
Loss of the message on cooler temperature Inputs of definition of collisions С2D BUS
27
Loss of the message on speed of movement of the car Inputs of definition of collisions С2D BUS
28
Loss of the message on engine turns Inputs of definition of collisions С2D BUS
29
Error CPU The given calibrations and CPU
33
Contour breakage took place The ambient temperature gauge
34
Contour breakage took place The temperature gauge in car salon
35
Contour breakage took place Entrance contour of the photo diode
36
Contour breakage took place Input of the fan of the forward panel/management the fan
37
Contour breakage took place Input of management of a mode of the forward panel
38
Contour breakage took place Contour of a feedback mixing air заслонки
39
Contour breakage took place Feedback contour заслонки modes
40
Too high feedback Contour of a food of the fan of a heater/fan
41
Short circuit in a contour took place The ambient temperature gauge
42
Short circuit in a contour took place The temperature gauge in car salon
43
Short circuit in a contour took place Entrance contour of the photo diode
44
Short circuit in a contour took place Input of the fan of the forward panel/management the fan
45
Short circuit in a contour took place Input of management of a mode of the forward panel
46
Short circuit in a contour took place Contour of a feedback mixing air заслонки
47
Short circuit in a contour took place Feedback contour заслонки modes
48
Too low feedback Contour of a food of the fan of a heater/fan
49
The error of switching of an input took place Input of width of impulse PWD
51
заслонка did not react Feedback contour заслонки modes
52
заслонка did not react Contour of a drive of an actuation mechanism mixing air заслонки
53
The course заслонки was too small Feedback contour заслонки modes
54
The course заслонки was too great Feedback contour заслонки modes
55
The course заслонки was too small Contour of a drive of an actuation mechanism mixing air заслонки
56
The course заслонки was too great Contour of a drive of an actuation mechanism mixing air заслонки
57
The error калибровочных the data took place The given calibrations and CPU
58
Loss of the message on cooler temperature took place Inputs of definition of collisions С2D BUS
59
Loss of the message on speed of movement of the car took place Inputs of definition of collisions С2D BUS
60
Loss of the message on engine turns took place Inputs of definition of collisions С2D BUS
61
Error CPU took place The given calibrations and CPU