Honda Accord

1998-1999 of release

Repair and car operation



Honda Chord
+ Honda Accord brand Cars
+ Settings and routine maintenance
+ Engine
- Systems of cooling, heating
   Antifreeze - general information
   Check of serviceability of functioning and thermostat replacement
   Check of a condition of fans of system of cooling and chains of their inclusion, replacement of fans
   Removal and installation of a radiator and broad tank of system of cooling
   Check of a condition of the water pump
   Replacement of the water pump
   Check of serviceability of functioning and replacement of the block of the sensor of a measuring instrument of temperature of cooling liquid
   Check of serviceability of functioning of the driving electromotor of the fan of a heater and condition of components of its electric chain, replacement of components
   Removal and installation of the electromotor of a drive of the fan of a heater
   Removal and installation of assembly of the control panel by functioning of a heater and air conditioner, adjustment of a driving cable
   Removal and installation of the heat exchanger of a heater
   Check of serviceability of functioning and service of systems of heating and air conditioning
   Check of an electric chain of the coupling of coupling of the To/in compressor
   Removal and receiver dehumidifier installation To/in
   Removal and To/in compressor installation
   Removal and To/in condenser installation
   Removal and To/in evaporator installation with the broad valve
+ Power supply system and release
+ engine Electric equipment
+ Engine management
+ gear shifting Box
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes





Check of serviceability of functioning and service of systems of heating and air conditioning

Central air

Air central air constantly is under a high pressure. At all do not disconnect refrigerator lines and do not remove any components of system, previously without having executed a discharge of the last. The discharge of central air of air should be made by strengths of the skilled expert in the conditions of a car-care center workshop. At a rassoyedineniye of refrigerator lines surely put on goggles!

At replacement of components of central air of air the certain amount of replaceable refrigerator oil necessary for filling of volume of new knot is required. Use only the oil good for the use in R-134a systems (attentively study a label on the container).

Service

The control checks listed below should be made on a regular basis for the purpose of maintenance of central air of air in good repair:

a) Check a condition of a belt of a drive of the compressor. In case of detection of defects or signs of wear make replacement (see. Head of Control and routine maintenance);
b) Check effort of a tension of a driving belt, in case of need make the corresponding adjustment (see. Head of Control and routine maintenance);
c) Check hoses of a refrigerator path on existence of cracks, swellings, signs of hardening and rubber aging. In case of need make replacement;
d) Check condenser plates on existence of the remains which have got stuck between them of insects, old leaves and other garbage. In case of need clean gaps a thin brush, or blow them the compressed air;
e) Check level of a charge of system;
f) At detection потеков waters on rugs in salon under the dashboard remove a drainage tube of removal of condensate from an evaporator casing (it is located in the bottom forward corner) and a piece of a wire check passableness of both openings.

Central air of air should join at least for 10 minutes not less often than once a month (even in a winter season). Long inaction To/in leads to hardening and failure of sealing rings and cuffs of a connecting path.

At inclusion of function of removal of products of an icing the К/В compressor will be involved.


In case of violations in work To/in, first of all check serviceability of functioning of the coupling of coupling of the compressor (see. Section Check of an electric chain of the coupling of coupling of the To/in compressor).

In view of complexity of a design of system and need of use of the special equipment, its service, deep diagnostics and regenerative repair lie outside the limits of qualification of the average amateur mechanic and should be made in the conditions of a car-care center workshop. The elementary checks only listed below in the present Section get to competence of the owner of the car and replacements.

The most typical cause of infringement of serviceability of functioning To/in is decrease in level of a charge of refrigerator oil. The elementary checks given below will allow to reveal signs of decrease in level of a coolant quickly.

CHECK

 PERFORMANCE ORDER

1. Warm up the engine to normal working temperature.
2. Include To/in on the maximum hladoproizvoditelnost. Choose the maximum high-speed mode of the fan. Open doors to exclude the closed air circulation in salon.
3. After the temperature of system will reach working value, feel two connected to the evaporator on a partition of an impellent compartment of a tube.

4. Thinner, going to the evaporator from the target union of the condenser the tube should be to the touch rather cold. Thicker tube going from the final union of the evaporator to back to the compressor, should be a little more colder (on 2 ÷ 6 degrees). If the final tube is to the touch much warmer inlet, therefore, the system needs additional charge. Enter the thermometer into a target air line via the central deflector on the dashboard. At included To/in temperature of air leaving the deflector should be lower on 19 ÷ 22 degree than ambient temperature (up to value 4.5°С). In very hot weather (+40°С), increase of target temperature to level of 15.6 °C, but is admissible no more.

5. If the requirements listed in the previous paragraph are not carried out, means, the system needs a charging. For more detailed diagnostics of a condition of system the car should be driven away in a specialized workshop. Performance of some onboard diagnostic checks will allow to define nature of damages and volume of the forthcoming recovery operations.

Coolant addition

 PERFORMANCE ORDER

For a charging of central air of air of cars considered in the real Management it is necessary to use only refrigerator R-134a oil.

1. Prepare standard charging set R-134a (ask in shops of automobile accessories). The structure of a set includes a ballonchik with refrigerator oil, a ventilny nozzle and the piece of a hose connected between the gate and the union of a low-pressure head part of a refrigerator path (see an accompanying illustration). As one ballonchik of oil it can appear insufficiently for a final charging of system, it is meaningful to buy just in case at once pair. Track, that at least in one of ballonchik oil was tinted in red color that will allow to reveal quickly leakages of a coolant in case of those.

At all do not fill in system more than two ballonchik of a coolant!

2. According to instructions of manufacturers connect a charging set to system.

At all do not make attempts of connection of a set to the union of a high-pressure head part of a path! The design of shtutserny connections allows to make set connection only to a low-pressure head part of system.

3. Close the gate on a transitional nozzle and screw the last on a ballonchik head, previously having made sure available a sealing ring / rubber laying.

Surely put on goggles!

4. Remove a dustproof cap from the union of a low-pressure head part of a refrigerator path and connect to it equipped with the socket of fast joining a hose of a charging set.

5. Warm up the engine and include К/В. Track, that the hose of a charging set did not adjoin to blades of fans of systems of cooling of engine/air conditioning.

The charging of system should be made at the working compressor. If the coupling of coupling of the compressor is disconnected, the system should be switched to the maximum hladoproizvoditelnost and to open all doors of salon.

That the compressor was not disconnected in the course of a charging, disconnect the socket from the sensor switch of low pressure (on some models the combined sensor switch of a low/high pressure is used) and перемкните its paper clip or a piece of a rigid wire.

6. Rotation of a ventilny nozzle pierce a ballonchik head, having opened thereby coolant giving (the characteristic sound of escaping gas should be heard). In the course of all charging discipline a ballonchik vertically, from time to time stirring up it. Between series of a charging do a pause necessary for stabilization of system.
7. In the presence of near at hand exact thermometer enter it in via the deflector into the central air line To/in and watch on it temperature of air submitted to salon.
8. When the ballonchik will become empty, block the gate and disconnect a hose from the low-pressure head union of system. At once put on the union a dustproof cap.
9. Disconnect from a ballonchik a ventilny nozzle, in case of need rearrange it on the second ballonchik and continue filling. On termination of procedure put an unfinished ballonchik vertically on a rack and as required use it for system additional charge.

Heating system

Carpet moistening on a floor under the heater heat exchanger, or a steam-out via deflectors of air lines tell about leakages of the heat exchanger. Remove the heat exchanger (see. The section Removal and installation of the heat exchanger of a heater) also replace it new (the heater heat exchanger is not subject to regenerative repair).

If the heater does not provide due heating of air submitted to salon, one of the following can be the reason of such refusal:

a) The thermostat is jammed in open situation that does not allow submitted to heat up to the heat exchanger of a heater of cooling liquid of the engine to normal temperature;
b) Violation of passableness of an okhladitelny path that blocks supply of cooling liquid in the heater heat exchanger takes place. Feel the hoses connected to branch pipes on a back partition of an impellent compartment - both of them should be hot, otherwise passableness of a path is broken (hoses, the heat exchanger, or an operating zaslonka of a heater) are blocked. Disconnect hoses and make obratnopotochny washing of the heat exchanger. Previously having disconnected, wash out also both hoses;
c) If to restore passableness of the heat exchanger by washing it is not possible, it is necessary to make block replacement.

Onboard diagnostics

Standard system of heating/air conditioning

On models considered in the real Management problem diagnostics of an electric chain of a control unit by functioning of the heater/conditioner of air can be made without use of the skanerny input reader.

Include ignition and, in pressing of the button of initiation of a mode of the closed retsirkulyatsiya, achieve inclusion of the control lamp located directly over it. The fan of a heater should be switched off.

Press the button once again (the control lamp should go out) and hold it drowned. Repeated inclusion of a control lamp testifies to initiation of a mode of self-diagnostics. Now the lamp will start to highlight codes of the elementary malfunctions revealed in system. One gleam testifies to violation of serviceability of functioning of the electromotor of management by process of mixing of air (zaslonka jamming, malfunction of windings, or short circuit). Two gleams mean failure of the electromotor of management by a choice of modes. Three gleams designate the violations connected with breaks or short circuits in a chain of the sensor of temperature of the evaporator, or internal malfunction actually sensor assemblies.

Chain of the electromotor of management of process of mixing of air

Disconnect from motor assembly electroconducting. By means of a wire crossing point submit tension of the battery on the plug of 1 socket of the electromotor, the plug 2 earth. The motor should start to rotate, otherwise change wires crossing points in places that should lead to motor rotation in an opposite direction. The faulty motor is subject to replacement. Further it is necessary to make resistance measurement between socket plugs 5 and 7 (demanded value makes 4.2 ÷ 7.8 kiloohms) and plugs 3 and 5 (0.58 ÷ 1.09 kiloohms when giving in salon of cold air and 3.52 ÷ 6.55 kiloohm at a choice of a mode of the maximum intensity of heating).

If doubts in serviceability of functioning of a zaslonka take place, disconnect a driving rod of the electromotor, from executive draft and repeat the check described above with application of wires crossing points. If now the motor starts to function regularly, replace a zaslonka, or its draft.

Electromotor of a choice of modes

Check is made by giving of tension of the battery on the plug 2 and grounding of the plug of 1 motor. The motor should be turned against the stop and stop, then it is necessary to stop food giving at once. Change of polarity of connection of wires crossing points should lead to motor rotation in the opposite direction.

In the presence of near at hand universal measuring instrument of chains with the digital indicator, include the device in a mode of measurement of resistance (a range to 20 kiloohms with a target current no more than 1 мА) and make conductivity stock-taking between plugs of the contact socket during procedure performance). Instant emergence of conductivity between the plug 7 and plugs 3, 4, 5 and 6 should take place.

If the electromotor is turned too slowly, or does not rotate at all, disconnect its drafts of a drive of the corresponding zaslonka and repeat check. If now rotation occurs normally, try to reveal and eliminate the reason of jamming of a zaslonka or its draft.

The electromotor of inclusion of a mode of the closed air circulation

Disconnect from the motor electroconducting.

By means of a wire crossing point submit tension of the battery on the plug of 1 electromotor, plugs 5 and 7 earth on a mass. The motor should start to rotate and pass smoothly in one or the other extreme provisions (“The closed circulation” or “Supply of external air”) at a weight detachment.

If the electromotor is turned too slowly, or does not rotate at all, disconnect its drafts of a drive of the corresponding zaslonka and repeat check. If now rotation occurs normally, try to reveal and eliminate the reason of jamming of a zaslonka or its draft.

The models equipped with system of climate control

On these models more difficult system of self-diagnostics is used. As the indicator instead of a control lamp the light-emitting diode display of the index of temperature of the control panel, capable to highlight to 40 codes of malfunctions is applied. During diagnostic check on the display are highlighted two symbol in the form of number 88. each of segments of both symbols is responsible for a certain refusal in system

Include ignition, transfer a control lever in temperature of submitted air to the provision of the minimum temperature, then return it to position of the maximum intensity of heating. Wait one minute, then squeeze out the AUTO button on the control panel. Holding the AUTO button pressed, drown also the OFF button, on the display of the temperature index two symbols in the form of number 88 should be highlighted.

Identification by the device of self-diagnostics of one of standard refusals in system causes a blinking of the corresponding segment of one of symbols. According to the designations given on an illustration above write down designations of blinking sectors of the display. Consulting the map codes of malfunctions, define nature of refusal and prepare for carrying out the corresponding regenerative repair.

Elimination of smells of central air of air

The unpleasant smells often arising at inclusion To/in are caused by formation of colonies of a mold on plates of the heat exchanger of the evaporator. The warm damp environment creates optimum conditions for emergence and development of fungoid microorganisms.

Access to the evaporator heat exchanger on the majority of models is extremely limited. Procedure of the guaranteed complete removal of the mold, carried out in the conditions of a workshop of car-care center is rather labor-consuming, takes away a lot of time and demands application of strong disinfectants. In principle, rather effective processing can be executed and in house conditions by own strengths of the owner of the car.

In the aerosol packaging, intended for service of central airs of air, it is possible to get special disinfectants practically in any shop of automobile accessories. It is necessary to remember that the price of means is usually directly proportional to its efficiency. Switch system in a mode of the closed air circulation and for ten minutes turn on the heater fan for the maximum speed. For the purpose of drying of system include heating on the maximum intensity. Disconnect electroconducting from the compressor for the purpose of prevention of its operation (see. Section Removal and To/in compressor installation).

Giving of means is usually carried out through a long hose. Remove the electromotor of a drive of the fan of a heater (see. The section Removal and installation of the electromotor of a drive of the fan of a heater), enter a nozzle of a submitting nozzle into the formed opening and displace it to the left, having directed on the evaporator heat exchanger. Giving of means is carried out according to instructions of his manufacturer. Try to process all surface of the heat exchanger most fully. Duration of each operation cycle and intervals between series should be specified on a container label.

The best preventive measure against emergence of colonies of a mold in the heat exchanger of the evaporator is regular check of passableness of a drainage tube.