Honda Civic/Acura Integra

from 1994 launch

Repair and operation of the car

System of diagnostic one of side (OBD) – the beginning of functioning and codes of bad functioning

Given on diagnostic unities

The control of the usefulness of the functioning of component ones of systems of injection and reduction in the toxicity of the carried out gases happens through the instrument of measuring universal foxglove (multímetro). The use of the instrument of measuring foxglove is preferable for several reasons. First of all, in analogous devices it is quite difficult (sometimes, it is impossible), in order that it defines the result of the indication inside the 100th actions and thousand of actions while during the inspection of the outlines including component electronic in the structure, such exactness is specially important. The second, not less important, the fact that the internal outline of a digital multímetro, has the quite high impedância is the reason (the internal resistance of the device does 10 millions of ohms). Since the voltômetro joins the chain checked in the parallel one, the exactness of the measurement of subjects is higher, of what the least current parasítica will pass in fact by the device. This problem is not essential in the moment of the measurement of quite high values of the tension (9÷12 of V), nevertheless oxygen sensor is essential in the diagnostic one of the elements that give signs of low tension, such as, for example, where it is on the measurement of actions of the volt.

The most convenient device of the diagnostic one of systems of control of the motor of modern models of cars is manual readers of the type of skanerny (to see an illustration I lower). The scanners of the first generation serve to read of codes of bad functioning of the systems OBD-I. Before the application the reader must happen for the complaisance of the model and the year of the launch of the checked car. Some scanners are of multiple use, at the expense of a possibility of the modification of a cartridge depending on the model of the diagnosed car (Ford, GM, Chrysler, etc.), ties others to demands of the regional authorities and is intended for the use in certain regions of the world (Europe, Asia, the USA, etc.).

With the introduction for the production the conditions are satisfactory of the last legislation of the protection of the environment of the system of the diagnostic one of side of the new generation (OBD-II) the readers of a special drawing began to be given out. Some producers sold the scanners destined for the use by the amateur mechanics in conditions of house – they ask in shops of motor accessories.

General description of the system OBD

The models 1994 and 1995 of the question are ended with the system of the diagnostic one of side of the first generation. From 1996, the company of Motors Honda sold the equipped models of the systems of the autodiagnostic one of the second generation that respond to standards of CARB and IT WAS and they received the name OBD-II. Several diagnostic creation of devices that it controls of separate parameters of systems of the reduction in the toxicity and fixes the refusals revealed in the memory of processor in the form of individual codes of bad functioning is a part of the system. The system also carries out the control of sensors and mechanisms of actuation, the operational cycles of controls of the vehicle, supplies a possibility of congelation of parameters and cleaning of the block of the memory.

The reading data of the memory of processor of OBD-II is done through the special scanner joined the diagnostic capture of 16 contacts of the reading of the database (DLC) located below the panel of the party of the driver of the car. All the models of cars of the respected marks, from 1996 the question is equipped of the system of the autodiagnostic one of the second generation OBD-II. A basic element of the system is the processor of side called by the electronic module of the management (ESM) or module of the management of the power (RSM).

ECM/PCM is a brain of a system of control of the motor. The basic data reach the module of several sensors of information and electronic component others (switches, the alternation, etc.). On basis of the analysis of the data that arrive of information sensors and according to the basic parameters they install in the processor memory, ECM/PCM develops orders of the operation of several operational alternations and mechanisms of actuation, executing through that the agreement of parameters of work of the motor and supplying the very efficiency of his return in the moment of the consumption of least fuel.

The special guarantee certificates with the extensive validity stretch out to the service of component ones of a system of control of the motor / reduction in the toxicity of the carried out gases. It is not necessary to do attempts of the realization independent of diagnostic one of failure of ECM/PCM or substitution of component ones of the system, to an exit of terms of certificates of guarantee, – they direct the center of services of experts' company of the company of Honda.

Information sensors

The heated sensors of oxygen (HO2S) – the Sensor develops a sign which vastness depends on the content of oxygen in the carried out gases of the air of motor and extern.

The sensor of the provision of an end of inclination (ICR) - The sensor is in use in systems of the autodiagnostic one of the first generation (OBD-I) and informs ECM/PCM in the provision of an end of inclination and the turns of the motor.

The sensor of VMT/provision of a doubled end / the situation of the piston (TDC/CKP/CYP) – This sensor is in use in systems of the second generation OBD-II. On basis of the analysis of the information of ECM/PCM which reprimand of the sensor defines the position of the piston of the first cylinder, it defines the moments of the injection of fuel and ignition.

The sensor of fluctuations of an end of inclination (CKF) – The sensor controls modifications in the frequency of the rotation of an end of inclination. If the modification of turns of the motor will exceed the limit of the admissible variety, the corresponding sign considered by the module as the certificate of the admission of the ignition if it gives for ECM/PCM.

The sensor of the temperature of cooling the liquid of the motor (EST) – on basis of the Information of ECM/PCM which reprimand of the sensor executes the necessary correction of the composition of the mixture of air fuel and a corner of an advancement of the ignition, and also it controls the work of the system EGR.

The sensor of the temperature of the soaked air (IAT) – ECM/PCM uses the information that reaches from the sensor IAT corrections of a current of the fuel, installations of a corner of an advancement of the ignition and management of functioning of the system EGR.

The sensor of the provision of a valve of butterfly (TPS) – The sensor is located in cases of a regulator and one adheres to an axle of a valve of butterfly. It determines the angle of the opening of a valve of butterfly (one makes working for the driver of the pedal of gas pedal) for the vastness of the given TPS of a sign of ECM/PCM and as appropriate the provision of the fuel corrects to introduce ports of cameras of combustion. The failure of the sensor or weakening of his fixation leads to interruptions of injection and violations of the stability of turns of wasting time.

The sensor of the absolute pressure in the oil pipeline (MARCH) - The sensor controls the modifications of the pressure in the oil pipeline of entry joined with modifications of turns and loads of the motor, transforming the information obtained to a sign of vastness. ECM/PCM uses the information handed by the sensor in the moment of corrections of the provision of the fuel and installations of a corner of an advancement of the ignition. The variety of the modification of a sign of production of the sensor does of 1.0÷1.5 B in the valve of shut butterfly (deep depression), to 4.0÷4.5 B in the completely open door (low depression). The sensor also is located in cases of regulator.

The sensor of the speed of the movement of the car (VSS) – Since it appears of his name, the sensor informs ECM/PCM in the current speed of the movement of the car.

Pressure sensor in the fuel tank - the Sensor is a component compound of the system of the capture of evaporation of fuel (EVAP) and it serves to follow the trace of the pressure of steams of gasoline in a tank. On basis of the information of ECM/PCM which reprimand of the sensor gives out orders of the operation of valves eletromagnéticas of a purge of the system.

The switch of sensor of the pressure of the system of the hydrofortification of a wheel (PSP) – on basis of the Information of ECM/PCM which reprimand of the switch of sensor supplies the increase in turns of wasting time due to the operation of the sensor IAC for aims of the compensation of the growing loads of the motor joined with the functioning of the hydraulic auxiliary rocket that drives.

The explosion sensor - the Sensor resists the modification of the level of the vibrations joined with explosions in the motor. On basis of the information of ECM/PCM which reprimand of the sensor executes the corresponding correction of a corner of an advancement of the ignition.

The transmission sensors – Besides data of VSS ECM/PCM also obtain the information of the sensors put in the transmission or joined to him. They are between such sensors: the meter of REVOLUTIONS FOR MINUTE of end of turbine, the sensor of temperature of ATF and the sensor of the chosen transfer.

The switch of sensor of the management of inclusion of an union of pressure of the condicionador of air – giving the provision of power of the battery to the valve eletromagnética of the compressor K/V the sign of corresponding information brings near the ECM/PCM that considers it like evidence of the increase of the load of the motor and as appropriate it corrects turns of his only course.

Actuation mechanisms

The alternation main PGM-FI (the alternation of the bomb of fuel) – ECM/PCM does the activation of the alternation of the bomb of fuel turning the key of ignition in DEPARTURE of situation or RACE. In the moment of the inclusion of the activation of ignition of the alternation it supplies the rise to the pressure in a system of provision of power. The alternation is in the block of meeting of the distribution of the food in a compartment of reason of the car. The description of proceedings of the check and substitution of the bomb of fuel is supplied in the Head of the system of provision of Power and launch.

Injectors of injection of fuel – ECM/PCM supplies the individual inclusion of each one of injectors according to an ignition order. Besides, the module controls the duration of the opening of injectors, the determined width of the operational impulse. The amount of the fuel injected in the cylinder is defined by the duration of the opening of an injector. The information most detailed according to the beginning of the functioning of the system of injection, substitution and service of injectors is supplied in the Head of the system of provision of Power and launch.

The module of the management of ignition (VAT) – The module makes working the functioning of rolls of the ignition, defining demanded a basic advancement on basis of the teams developed by ECM/PCM. In all the models of cars considered in the present manual it is in use when VAT was built in the ignition distributor, since more details see the Chief Elektrooborudovaniye of the motor.

The valve of the stabilization of turns of wasting time (IAC) – the Valve IAC executes one dosage of the amount of the gone round air going round a butterfly valve when the last thing is closed or maintains the position that wastes time. ECM/PCM makes working the opening of the valve and the formation of the resultant air current. The information most detailed in the valve IAC contains in the Chapter 4.

The valve of a purge from a coal adsorber – the valve Eletromagnética of a purge from a coal adsorber is a component one of the system of the capture of evaporation of fuel (EVAP) and, working in the order of ECM/PCM, it executes to blow of the steams of fuel that were accumulated in an adsorber in the entry oil pipeline for aims of burning them in the course of the normal functioning of the motor.

Reading code of bad functioning

ORDER OF REALIZATION

1. The capture of service of control is located below the panel of the party of passengers of the car (companion sees an illustration). 2. To read of codes of bad functioning it is necessary to close the capture covers a point of passage of wire and to control indications of the lamp of control that is built in in a policeman of instrument of the car "They Check the motor" (regularly for all the models). The special diagnostic reader can join only the diagnostic capture of 16 contacts of the database (DLC) located in the left below the panel of the car (companion sees an illustration). 3. To examine of the codes of bad functioning that are written in the memory of ECM/PCM they install a point of passage in the capture of service of control (1 sees an illustration to the paragraph), soon include the ignition, having become a key in the position of in. If in the codes of memory of processor of the bad functioning that happen if they bring, they will begin to stand out constantly for a control lamp "They check the motor" in a policeman of instrument of the car. The first number of a code of two digits stands out for blinkings long of a lamp, the second – short one (for example, an accompanied long inclusion six short are equal to the code 16). If in the memory of the module of the management more than a code one writes, they are going to stand out in series, then, after a distinction of pause of codes is going to happen again.

List of codes of bad functioning of system of autodiagnostic OBD-I

Number of a code	Chain or system	Actions of elimination of a cause of failure
1	ECM/PCM is defective	Check the electric capture ECM/PCM if it is not possible to reveal signs of the violation of contacts, to expel the car of the diagnostic one detailed in the workshop of repairs of the car
3 and 5	Content of oxygen	Check the sensor of oxygen, his heater and a chain of an electrical system (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
4	MARCH	Check the sensor of MARCH and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
6	ICR	Check the sensor of ICR and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
7	TPS	Check the sensor TPS and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
8	BMT (TDC)	Check the sensor TDC and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
9	Cylinder of CYP n ° 1	Check the sensor CYP and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
10	IAT	Check the sensor IAT and his electric chain (to see the Check of usefulness of a state and substitution of the sensor of the provision of a valve of butterfly (TPS))
12	EGR	Check a condition of hoses of the system, the sensor of the size of the opening of the valve EGR and the valve EGR (to see the Check of usefulness of a state and substitution of the sensor of the temperature of the soaked air (IAT))
13	Atmospheric pressure	The car is removed for they check the workshop of repairs of the car
14	Valve of IAC	Check the valve IAC and the system of the stabilization of turns of wasting time (to see the Head of the system of provision of Power and launch)
15	Sign of production of ignition	The system of control of the ignition (to see the Chief Elektrooborudovaniye of the motor)
16	Injection injector	Check a system of provision of power and the injectors of the injection of the fuel (to see the Head of the system of provision of Power and launch)
17	VSS	The car is removed for they check the workshop of repairs of the car
19	Closure valve of Ý/m	In models with for the CHECK the state Ý/m the valve (organized 4 see automatic exchanges and stepless (ат and CVT))
20	ELD	Check the system ELD (to see the Check of usefulness of a state and substitution of the sensor of VMT/provision of a doubled end / the situation of pistons in cylinders of the motor (TDC/CKP/CYP))
21	Agreement of phases GRM and Ý/m lifting of the valve	VTEC sees checks Ý/m valves, the Chief Remont of the motor without extraction of the car - the Civic model
22	Agreement of phases GRM and sensor of pressure	To see checks of the sensor of the pressure of VTEC, the Chief Remont of the motor without extraction of the car - the Civic model
30	Sign And And/T FI (models with in)	The car is removed for they check the workshop of repairs of the car
41	Heater of the sensor of oxygen	Check the usefulness of a sign of the tension of the heater (to see the Head of the system of provision of Power and launch)
43	System of supply of fuel	Check the pressure of fuel and a condition of the regulator (to see the Head of the system of provision of Power and launch), also checks sensors of oxygen to existence of signs of losses of the depression
48	The heated l-probe	Check the usefulness of a sign of the tension of the heater (to see the Head of the system of provision of Power and launch)

List of codes of bad functioning of system of autodiagnostic OBD-II

Number of a code (number of MIL'S flashes of lightning)	Possible failure cause
P0106 (5)	Sensor of the MARCH / PROBLEM with efficiency of return of the motor
P0107 (3)	Low sign of entry of the sensor of MARCH
P0108 (3)	High sign of entry of the sensor of MARCH
P0111 (10)	The sensor IAT/problem with efficiency of return of the motor
P0112 (10)	Low sign of entry of the sensor IAT
P0113 (10)	High sign of entry of the sensor IAT
P0116 (86)	He eats sensors / problems with the efficiency of the return of the motor
P0117 (6)	The low sign of entry of the come the sensor
P0118 (6)	The high sign of entry of the come the sensor
P0122 (7)	Low sign of entry of the sensor TPS
P0123 (7)	High sign of entry of the sensor TPS
P0131 (1)	The low tension of a chain of primary heated l-probe (the oxygen sensor 1)
P0132 (1)	High voltage of a chain of primary heated l-probe (the oxygen sensor 1)
P0133 (61)	Slow reaction of primary heated l-probe (the oxygen sensor 1)
P0135 (41)	Bad functioning in a chain of the heater of primary l-probe (the oxygen sensor 1)
P0137 (63)	The low tension of a chain of the secondary heated l-probe (the oxygen sensor 2)
P0138 (63)	High voltage of a chain of the secondary heated l-probe (the oxygen sensor 2)
P0139 (63)	Slow reaction of the secondary heated l-probe (the oxygen sensor 2)
P0141 (65)	Bad functioning in a chain of the heater of the secondary l-probe (the oxygen sensor 2)
P0171 (45)	Mixture reimpoverishment
P0172 (45)	Mixture reenrichment
P0300	Chance ignition admissions
P0301 (71)	Ignition admissions in the cylinder n ° 1
P0302 (72)	Ignition admissions in the cylinder n ° 2
P0303 (73)	Ignition admissions in the cylinder n ° 3
P0304 (74)	Ignition admissions in the cylinder n ° 4
P0325 (23)	Bad functioning in a chain of sensor of explosion
P0335 (4)	Bad functioning in a chain of the sensor of ICR
P0336 (4)	Sensor of an ICR/problem with efficiency of return of the motor
P0401 (80)	The too small current of EGR is revealed
P0420 (67)	Insufficient efficiency of functioning of the catalytic converter
P0441 (92)	The purge of EVAP is executed insuficientemente effectively
P0452 (91)	Low sign of entry of the sensor of pressure in the tank of fuel (system of EVAP)
P0453 (91)	High sign of entry of the sensor of pressure in the tank of fuel (system of EVAP)
P0500 (17)	Bad functioning in chain VSS
P0501 (17)	The sensor VSS/problem with efficiency of return of the motor
P0505 (14)	Bad functioning in a chain of sensor IAC
P0700 (70)	IN
P0715 (70)	IN
P0720 (70)	IN
P0725 (70)	IN
P0730 (70)	IN
P0740 (70)	IN
P0753 (70)	IN
P0758 (70)	IN
P1106 (13)	The sensor BARO/problem with efficiency of return of the motor
P1107 (13)	Low sign of entry of the sensor BARO
P1108 (13)	High sign of entry of the sensor BARO
P1121 (7)	The point of the opening of a valve of butterfly is waited more than
P1122 (7)	The point of the opening of a valve of butterfly is waited more than
P1128 (5)	The absolute pressure in the oil pipeline is lower than what waited
P1129 (5)	The absolute pressure in the oil pipeline is higher than what waited
P1162 (48)	Bad functioning in a chain of primary l-probe (the oxygen sensor 1)
P1163 (61)	Too slow reaction of primary l-probe (oxygen sensor 1)
P1164 (61)	l-zond/problemy elementary education with efficiency of return of the motor
P1165 (61)	l-zond/problemy elementary education with efficiency of return of the motor
P1166 (41)	Bad functioning in a chain of primary l-probe (the oxygen sensor 1)
P1167 (41)	Bad functioning in a chain of the heater of primary l-probe (the oxygen sensor 1)
P1168 (48)	Low sign of entry of ETIQUETTE of primary l-probe (oxygen sensor 1)
P1169 (48)	High sign of entry of ETIQUETTE of primary l-probe (oxygen sensor 1)
P1259 (22)	Bad functioning of the system VTEC
P1297 (20)	Low sign of entry of ELD
P1298 (20)	High sign of entry of ELD
P1300 (-)	Chance refusal
P1301 (71)	Ignition admissions in the cylinder n ° 1
P1302 (72)	Ignition admissions in the cylinder n ° 2
P1303 (73)	Ignition admissions in the cylinder n ° 3
P1304 (74)	Ignition admissions in the cylinder n ° 4
P1336 (54)	Instability of indications of the sensor CKF
P1337 (54)	There is no sign of the sensor CKF
P1359 (8)	The sensor of ICR/TDC desconecta-se
P1361 (8)	Instability of indications of the sensor of ICR/TDC
P1362 (8)	There is no sign of the sensor TDC
P1381 (9)	Instability of indications of the sensor CYP
P1381 (9)	There is no sign of the sensor CYP
P1456 (90)	The leaks of evaporation of fuel in a tank of gasoline (EVAP) happen
P1457 (90)	The leaks of evaporation of fuel in a coal adsorber (EVAP) happens
P1491 (12)	The point of the opening of the valve EGR is insufficient
P1498 (12)	The sensor of the opening of the valve EGR gives the too high sign
P1508 (14)	Bad functioning in a chain of the IAC (1) valve
P1509 (14)	Bad functioning in a chain of the IAC (2) valve
P1607 (-)	Bad functioning of an internal chain of ECM/PCM
P1655 (30)	The interval or the short circuit of the line of alarm of TMA/TMB happen
P1705 (70)	Bad functioning of in
P1706 (70)	Bad functioning of in
P1753 (70)	Bad functioning of in
P1758 (70)	Bad functioning of in
P1768 (70)	Bad functioning of in
P1785 (70)	Bad functioning of in
P1790 (70)	Bad functioning of in
P1791 (70)	Bad functioning of in
P1793 (70)	Bad functioning of in
P1870 (70)	Bad functioning of in
P1873 (70)	Bad functioning of in
P1879 (70)	Bad functioning of in
P1885 (70)	Bad functioning of in
P1886 (70)	Bad functioning of in
P1888 (70)	Bad functioning of in
P1890 (70)	Bad functioning of in
P1891 (70)	Bad functioning of in

Cleaning of memory of ECM/PCM

Entering in a code of the bad functioning in the memory of ECM/PCM in a policeman of instrument of the car the control lamp "Illuminates they check the motor". The code does not remain written in the memory of the module up to him is not operated of. To clean of the memory of the module of the management of 10÷15 of seconds they take the lock of security of RESERVE of the block of meeting located in the right part of a compartment of reason (to see the electric equipment of Front Side).