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Samodiagnostyka

 

Odczytywanie kodow ECU.

tabela kodów ECU i OBD (do zczytania Code Readerem - samochody z OBD II po 1996 roku) - tutaj

W samochodach po 1998 roku ze złączem 5pin lub 7pin tez można odczytywac kody z mrugnięc lampki tylko trzeba zewrzec odpowiednie 2 styki w tych złaczach wielostykowych - najlepiej zobaczyc to w instrukcji napraw.

Accordy 90-93 maja 2 metody odczytu kodow ECU.


1. W samochodach przed 1992 rokiem lampka znajduje sie na obudowie ECU. Widac ja po odchyleniu dywanika w nogach pasazera na grodzi do silnika (styk grodzi i podlogi). Odczyty nie wymaga zadnych dodatkowych zabiegow.

Umiejsowienie diody LED (modele do 1991) i styku kontrolnego ECU (modele od 1992)

ECU z "oczkiem" (dioda)

ECU bez diody

Dioda w ECU w starszych konstrukcjach

Dioda automatycznej skrzyni biegów

 

 


2. W samochodach z roku 1992 i kolejnych samo ECU nie ma kontrolki. Miga lampka CheckEngine w desce rozdzielczej.
Aby zmusic CheckEngine do migania nalezy zewrzec 2 koncowki w styku kontrolnym ECU znajdujacym sie pod "boczkami" lub dywanikiem w nogach pasazera i wlaczyc zaplon (NIE URUCHAMIAC SILNIKA!!!)

Check Engine

Kontrolka "S" (automaty)

 

Styk kontrolny ECU od styku serwisowego (obok)
odroznia sie po kolorze kabli


Inne uzłożenie konektora serwisowego (zwiera sie tą dwupinową część po lewej)

 

W civiku coupe po 1996 roku styk jest po stronie kierowcy

 

Jeden dlugi bysk nalezy odczytywac jako pelne dziesiatki a krotkie blyski jak jednostki.
Np: 3 dlugie blyski to kod "30" a 3 dlugie a potem 8 krotkich to "38"
Jezeli jest wiecej jak jeden kod bledu ECU powtarza kazdy kod 3 razy, potem nastepuje pauza dluzsza niz miedzy (dziesiatkami a jednostkami) i ECU wyswietla nastepny kod 3 razy. Gdy wyswietli wszystkie to powtarza do poczatku.

TUTAJ jest 3MB filmik pokazuj1cy migaj1ca kontrolke Check Engine oraz "S" od automatu.
Check Engine wymiguje kod 43 a "S" kolejno b3edy 1,2,3,8,15

OBD I

1 . Oxygen Sensor Problem z obwodem sondy lambda (o2 sensor circuit)
2 . ECU Brak sygnalow do ECU (no cignal ECU)
3 . MAP Sensor Problem z obwodem MAP sensora (w VCB)
4 . Crank Angle Sensor (CRANK) Open or shorted signal circuit
5 . MAP Sensor Open or shorted signal circuit
6 . Coolant Temperature Sensor Czujnik temp. plynu chlodzacego
Open or shorted signal circuit
7 . Throttle Angle Sensor Czujnik polozenia przepustnicy
Open or shorted signal circuit
9 . Crank Angle Sensor (CYL) Czujnik polozenia walu korbowego
(Open or shorted signal circuit )
10. Intake Air Temperature Czujnik tempreratury dolotu, uszkodzenie sensora
12. EGR System Blad EGR (No EGR action)
13. Atmospheric Pressure (PA)

Czujnik cisnienia amosferycznego
(Problem with PA circuit )
14. Electronic Air Control Valve (EAVC) Zawor sterowania wolnymi obrotami
(Electronic air control valve) >>>>> TUTAJ
15 . Ignition Output Signal Sygnal zaplonowy, przerywacz
(Electrical problem in signal circuit)
16 . Fuel Injector Wtryskiwacze
(Problem in fuel injector circuit )
17. Vehicle Speed Sensor (VSS) Czujnik redkosci
(Open or shorted signal circuit ) >>>> TUTAJ
20 . Electrical Load Detector Czujnik obciazenia elektrycznego
(Problem with electrical load detector circuit )
30 . A/T FI Signal (A) Problem z komputerem skrzyni automatycznej
(Problem in automatic transmission control unit and ECU circuit)
31. A/T FI Signal (B Problem z komputerem skrzyni automatycznej
Problem in automatic transmission control unit and ECU circuit
41 . Oxygen Sensor Heater Problem z sonda LAMBDA
(Problem with 02 sensor circuit )
43. Fuel Supply system Problem z lambda lub systemem zasilania paliwem
(Problem with 02 sensor circuit or fuel system)

Nowsze modele (kody rozszerzone)

1
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
Oxygen Sensor "A" (Primary)
defective circuit or unplugged / defective sensor
2
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-89 86-87 n/a 85-87 85-91 n/a n/a
Oxygen Sensor "B"
defective circuit or unplugged / defective sensor
3
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
MAP Sensor (Manifold Absolute Pressure)
defective circuit or unplugged / defective sensor
4
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-98 88-98 97-98 88-91 93-97 95-98 85-98
CKP Sensor (Crankshaft Position Sensor) 
defective circuit or unplugged / defective sensor
5
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 * 86-98 97-98 85-91 93-97 96-98 85-98
MAP Sensor (Manifold Absolute Pressure)
mechanical problem / disconnected piping
* exc 94-95
6
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
ECT Sensor (Engine Coolant Temperature)
defective circuit or unplugged / defective sensor
7
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
TP Sensor (Throttle Position)
defective circuit or unplugged / defective sensor
8
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
TDC Sensor (Top Dead Center)
defective circuit or unplugged / defective sensor
9*
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98** 86-98 97-98 85-91 93-97 95-98 85-98
CYP Sensor (Cylinder)
defective circuit or unplugged / defective sensor 
*   not a valid code for any throttle body injection Hondas 
** not a valid code for V-6 engines
10
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
IAT Sensor (Intake Air Temperature)
defective circuit or unplugged / defective sensor
12
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 * n/a 85-91 * n/a 95-98 85-98
EGR Lift Sensor (Exhaust Gas Recirculation)
defective circuit or unplugged / defective sensor 
* not a valid code if car is not equipped with an EGR valve (some Civic models are not)
13
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98
BARO Sensor (Atmospheric Pressure)
defective circuit or unplugged / defective sensor
14
Accord Civic CRV CRX Del Sol Odyssey Prelude
88-98 88-98 97-98 88-91 93-97 95-98 88-98
IAC Valve (Idle Air Control)
defective circuit or unplugged / defective sensor
15
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 88-95 n/a 88-91 93-95 95 88-95
Ignition Output Signal
missing or defective ignition output signal
16
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 88-95 n/a 88-91 93-95 95 88-95
Fuel Injector System
defective circuit or unplugged / defective fuel injector
17
Accord Civic CRV CRX Del Sol Odyssey Prelude
88-98 88-98 97-98 88-91 93-97 95-97 88-98
VSS (Vehicle Speed Sensor)
defective circuit or unplugged / defective sensor
19
Accord Civic CRV CRX Del Sol Odyssey Prelude
n/a 88-95 n/a 88-91 93-97 n/a n/a
Automatic Transmission Lock Up Control Solenoid Valve
defective circuit or unplugged / defective solenoid valve
20
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-98 88-98 97-98 88-91 93-97 95-98 92-98
Electrical Load Detector
defective circuit or unplugged / defective sensor
21*
Accord Civic CRV CRX Del Sol Odyssey Prelude
94-98 ** 92-95 n/a n/a 93-95 n/a 93-95
VTEC Solenoid Valve
defective circuit or unplugged / defective solenoid valve 
*   not a valid code if car does not have a VTEC engine 
** not with V-6 engine
22*
Accord Civic CRV CRX Del Sol Odyssey Prelude
94-98 92-98 n/a n/a 93-97 98 93-98`
VTEC Oil Pressure Switch 
defective circuit or unplugged / defective oil pressure switch 
* not a valid code if car does not have a VTEC engine
23
Accord Civic CRV CRX Del Sol Odyssey Prelude
98 * 96-98 n/a n/a 94-97 n/a 92-98
KS (Knock Sensor)
defective circuit or unplugged / defective sensor 
* not a valid code if V-6 engine
30
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-98 * n/a n/a n/a n/a 95 92-98 *
Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB
defective circuit or unplugged / defective sensor 
* not a valid code for 1996
31
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 n/a n/a n/a n/a 95 92-95
Automatic Transmission Signal "B"
defective circuit or unplugged / defective sensor
41
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-98 92-98 97-98 n/a 93-97 95-98 90-98
Primary Oxygen Sensor - Heater
circuit malfunction
43
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 92-95 n/a n/a 93-95 95 90-95
Fuel Supply System
defective or malfunctioning fuel supply system
45
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
System Too Lean or Too Rich
malfunction in the fuel monitoring systems
48
Accord Civic CRV CRX Del Sol Odyssey Prelude
98 92-98 n/a n/a n/a n/a n/a
LAF Sensor (Lean Air Fuel)
defective circuit or unplugged / defective sensor
54
Accord Civic CRV CRX Del Sol Odyssey Prelude
96 96-98 97-98 n/a 96-97 n/a n/a
CKF Sensor (Crankshaft Speed Fluctuation)
defective circuit or unplugged / defective sensor
58
Accord Civic CRV CRX Del Sol Odyssey Prelude
98 * n/a n/a n/a n/a n/a n/a
TDC Sensor 2 (Top Dead Center)
defective circuit or unplugged / defective sensor 
* with V-6 engine only
61
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Oxygen Sensor, Heated - Sensor 1 (Primary)
high voltage, low voltage, or slow response
63
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Oxygen Sensor, Heated - Sensor 2 (Secondary)
high voltage, low voltage, or slow response
65
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Oxygen Sensor Heater (Secondary)
malfunctioning or defective oxygen sensor heater
67
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Catalyst system Efficiency Below Threshold
malfunctioning or defective catalyst system
70
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a n/a 96-98 96-98
Automatic Transmission
malfunction with the automatic transmission controls
71
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Cylinder 1 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
72
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Cylinder 2 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
73
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Cylinder 3 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
74
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Cylinder 4 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire
75
Accord Civic CRV CRX Del Sol Odyssey Prelude
98 * n/a n/a n/a n/a n/a n/a
Cylinder 5 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire 
* valid code for V-6 engine only
76
Accord Civic CRV CRX Del Sol Odyssey Prelude
98 * n/a n/a n/a n/a n/a n/a
Cylinder 6 Misfire or a Random Misfire
a condition is present that is creating a cylinder misfire 
* valid code for V-6 engine only
80
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 n/a n/a n/a 96-98 96-98
Exhaust Gas Recirculation
insufficient flow detected
86
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
ECT Sensor (Engine Coolant Temperature)
circuit range / performance problem
90
Accord Civic CRV CRX Del Sol Odyssey Prelude
97-98 96-98 n/a n/a