ECU , ABS & SRS coduri eroare si posibile cauze.

[Vali_lj Tech Geek Find all posts View Profile Close Vali_lj]

Coduri ECU


Obtinerea codurilor de eroare se face prin mufa sevice de 2 pin sau mufa OBD de 16 pini ( la generatiile dupa '97).
Cu motorul oprit si cheia in pozita 0 ,localizati mufa service cu 2 pini (vezi foto) si conectati cu ajutorul unei agrafe de birou pinii. Puneti contactul si becul chek engine se va aprinde si stinge intermitent.( contact pus , fara a porni motorul).
Veti realiza ca sunt flashuri lungi si scurte . Toate codurile de eroare sunt compuse din doua cifre. Flashurile lungi determina zecimile numarului , flashurile scurte determina numerele intregi prin intermitenta lor.

ex . lung , lung , lung , scurt , scurt , scurt , scurt pauza ---> este codul 34

3 flashuri lungi urmate de 4 flashuri scurte apoi o pauza lunga . Daca acesta este singurl cod de eroare dat de catre ECU , atunci acesta se va repeta la nesfarsit pana luati contactul. Daca exista si alte coduri de eroare date de catre ECU atunci veti vedea o serie diferita de flashuri urmata de o pauza mai lunga intre coduri. Odata ce codurile au fost afisate , ele se vor repeta continuu pana contactul va fi luat.

ex; lung , lung, scurt, pauza , lung , lung , lung , lung , scurt , scurt , scurt , pauza -----> coduri 21 , 43

Daca masina este mai noua de 96 si este OBD2 atunci puteti sa va conectati la ECU prin mufa OBD 2 (vezi DLC 16P). Afiseaza o literea urmata de 4 cifre. Orice cod flash este acoperit si de cateva coduri OBD 2 mai specifice.
De exemplu Cod 63 (2nd O2 sensor) poate fi P0137 (low voltage), P0138 (high voltage), sau P0139 (slow response).


Amplasarea mufelor la gama honda





Civic 92-95


Mufele:
Generatia 92-93 au mufa gri iar firele : maro si verde cu dunga alba
Generatia 94-00 au mufa albastra iar firlele: maro si negru




HONDA OBD2











Coduri pentru seria K de motoare






Coduri ABS

Se pot afla in aceeasi maniera ca si codurile de ecu numai ca de data asta atentia este asupra becului de la ABS.
Introduceti agrafa in mufa de diagnoza apoi rotiti cheia in pozita II ( contact pus , fara a porni motorul) . Secventa este urmatoarea
Flash lung (2 sec) , pauza lunga ( 2 sec) - acesta inca nu este codul inca.
Flasuri scurte pentri primele cifre ale codului - pauza 1 sec - flashuri scurte pentru a doaua cifra a codului.
Pauza lunga ( 5 sec) , apoi urmatorul cod.

92-95 civic si del sol ( OBD1)




94-97 Coduri ABS (multumiri lui Laux_Laux_Laux)

1- The hydraulic pump motor is over-run
1-2 The hydraulic pump motor
1-3 Is a high pressure leak
1-4 The pressure switch
1-8 Accumulator of high pressure system
2-1 Circuit of handbrake warning lamp switch
3-1 Rotor teeth damaged on right hand front wheel speed sensor ( pulser or reluctor)
3-2 Rotor teeth damaged on left hand front wheel speed sensor ( pulser or reluctor)
3-4 Rotor teeth damaged on right hand rear wheel speed sensor ( pulser or reluctor)
3-8 Rotor teeth damaged on left hand rear wheel speed sensor ( pulser or reluctor)
3-12 Combination of different sizes of tires
4-1 Circuit of right hand front wheel speed sensor ( pulser or reluctor)
4-2 Circuit of left hand front wheel speed sensor ( pulser or reluctor)
4-4 Circuit of right hand rear wheel speed sensor ( pulser or reluctor)
4-8 Circuit of left hand rear wheel speed sensor ( pulser or reluctor)
5 rear wheel lock - Right / Left
5-4 Right hand rear wheel lock
5-8 Left hand rear wheel lock
6 - fail-safe relay - Front / rear
6-1 Front fail safe relay
6-4 Rear fail safe relay
7-1 Right hand front, hydraulic modulator solenoid valve
7-2 Left hand front, hydraulic modulator solenoid valve
7-4 Rear, hydraulic modulator solenoid valve
8-1 Operation of the ABS
8-2 Faulty ECU (CPU comparison)
8-4 Internal circuit of the ECU faulty (IC self-check)

Nu exista flashuri lungi , toate flashurile sunt scurte urmate de pauze scurte sau lungi

Incepand din anul 98 tot sistemul ABS este diferit , cu lista diferita de coduri.

98+ Coduri ABS

11 - wheel senor (open/short to body ground/short to power) FR
13 - wheel senor (open/short to body ground/short to power) FL
15 - wheel senor (open/short to body ground/short to power) RR
17 - wheel senor (open/short to body ground/short to power) RL
12 - wheel senor (electrical noise/intermittent interuption) FR
14 - wheel senor (electrical noise/intermittent interuption) FL
16 - wheel senor (electrical noise/intermittent interuption) RR
18 - wheel senor (electrical noise/intermittent interuption) RL
21 - pulser FR
22 - pulser FL
23 - pulser RR
24 - pulser RL
31 - solenoid (short to body ground/short to wire) FR-IN
32 - solenoid (short to body ground/short to wire) FR-OUT
33 - solenoid (short to body ground/short to wire) FL-IN
34 - solenoid (short to body ground/short to wire) FL-OUT
35 - solenoid (short to body ground/short to wire) RR-IN
36 - solenoid (short to body ground/short to wire) RR-OUT
37 - solenoid (short to body ground/short to wire) RL-IN
38 - solenoid (short to body ground/short to wire) RL-OUT
41 - wheel lock FR
42 - wheel lock FL
43 - wheel lock RR
44 - wheel lock RL
51 - motor lock
52 - motor stuck OFF
53 - motor stuck ON
54 - fail-safe relay
61 - ignition voltage
62 - ignition voltage
71 - different diameter tire
81 - central processing unti (CPU)

Coduri SRS

Aflarea codurilor SRS se face tot in aceeasi mufa de diagnoza prin care afla codurile de eroare de la ECU , numai ca de data asta ne uita la becul de la SRS.La fel ca si in cazul codurilor de eroare ale ECU-ului , martorul SRS se aprinde si se stinge la intervale definite dar diferenta este ca in loc de un semnal lung asociat cu o zecimala ca in cazul codurilor de la ecu este doar numarul primar iar cel scurt secundar. Adica la doua semnale lungi nu avem 20 ci 2.

Pentru reset la SRS link

[tzunny Senior Member Find all posts View Profile Close tzunny]

Am incercat si eu testul cu "agrafa". Am unit cele 2 contacte, am pus contactul iar "Check-ul" ramane aprins. Asta inseamna ca nu am nici o eroare?

[Vali_lj Tech Geek Find all posts View Profile Close Vali_lj]

Cand ramane aprins arata ca nu sunt erori .

[W0lfman Senior Member Find all posts View Profile Close W0lfman]

In urma unei diagnosticari cu un scantool al unui coleg, pe fondul tensiunii slabe la baterie, m-am pricopsit cu un 84-1 (sensor logic failure); ramane aprins triunghiul galben de langa VSA iar dupa cateva minute de rulaj cu viteza de 40-60 km/h se aprinde si VSA impreuna cu CHECK SYSTEM. Exista vreo sansa de resetare a acestui senzor fara a trebui sa ajung la reprezentanta? Masina este cea din semnatura.

L.E. Am gasit o procedura insa necesita HDShttp://www.justanswer.com/acura/586l...code-84-1.html:

Relearn the steering sensor.We get this code sometimes when someone runs the battery low or takes the air bag off. Clear the code and follow this EXACTLY you might need to try it more than once. If it wont take you might need to replace the sensor (very rarely) .
NOTE: Do not press the brake pedal during this procedure.
Park the vehicle on a flat and level surface.
With the ignition switch OFF, connect the HDS to the 16P date link connector (DLC) (A) under the driver's side of the dashboard.
Short the SCS circuit using the HDS.
Turn the ignition switch ON (II) with the brake pedal position switch released.
The ABS indicator comes on for 2 seconds and goes off.
After the ABS indicator goes off, press and release the VSA OFF switch once within 0.5 seconds.
After the ABS indicator comes on, press and release the VSA OFF switch once within 0.5 seconds.
The VSA activation indicator blinks two times and goes off in 1 second, then the system completes the VSA sensor neutral position memorization.
When the ABS indicator, VSA indicator and VSA activation indicator go off, the memorizing is done. If the indicators do not go off, retry these steps.
Turn the ignition switch OFF, and disconnect the HDS from the 16P DLC.

Intrebarea este daca se poate reseta circuitul SCS fara testerul HDS. In caz ca nu, ar fi OK unul de tipul asta? http://www.diagnozapro.ro/interfete-...ster-diagnoza/

[W0lfman Senior Member Find all posts View Profile Close W0lfman]

Am gasit semnificatia pinilor din mufa OBD2:
Pin Signal Description

4 CGND Chassis ground
5 SGND Signal ground
6 CAN High J-2284
7 K-LINE (ISO 9141-2 and ISO/DIS 14230-4)
9 SCS SCS (Service Check System) - diagnostic codes
12 Programming out
13 or 14 Input/Output for VTM-4 and immobilizer control
14 CAN Low J-2284 (WEN)
15 ISO 9141-2 L-LINE (ISO 9141-2 and ISO/DIS 14230-4)
16 +12v Battery power (unswitched)


Intrebarea este daca scurtcircuitez pinul 9 cu 5 obtin acelasi rezultat ca si cu testerul HDS in procedura de mai sus.

[W0lfman Senior Member Find all posts View Profile Close W0lfman]

End of story: senzorul VSA nu se poate recalibra decat cu testerul de reprezentanta, dupa stergerea erorii. Procedura de mai sus nu functioneaza la CL7/2. Am incercat tot ce-i posibil (cumparat tester HDS, scurtcircuitat SCS, etc).

[mhh39 Senior Member Find all posts View Profile Close mhh39]

Care este motivul pentru care s-a aprins martorul? Datorita ELM327?

[W0lfman Senior Member Find all posts View Profile Close W0lfman]

Nu, un alt tester universal. Problema a fost tensiunea slaba a acumulatorului, dupa cateva zile de stat in parcare s-a efectuat diagnosticarea pe pozitia ON a contactului in jur de 30 min, fara macar sa se puna pe OFF ventilatia.

[ANT76 Senior Member Find all posts View Profile Close ANT76]

stie cineva codul P2647 la ce s/ar referi? pe un tester universal spune "rocker arm pressure oil high voltage..
merci.

[dexter Senior Member Find all posts View Profile Close dexter]

E de vina VTEC oil pressure solenoid


KOL Sybronendo

[mumuishere Member Find all posts View Profile Close mumuishere]

Eu am un 54-1 Failsafe Relay Failure dupa ce (injuraturi) am pus bateria invers....

[Tbi Junior Member Find all posts View Profile Close Tbi]

Cine ma poate ajuta cu o diagnoza: martorul VSA si Check System s-au aprins.

[ClaudiuRo Member Find all posts View Profile Close ClaudiuRo]

ECU , ABS & SRS coduri eroare si posibile cauze.

Aveți idee cum se poate reseta CB-ul . Imi indica eronat km rămași de parcurs. Cu rezervorul la jumătate imi arată 0 si cu rezervorul plin cam 220km. Acul indicator arată bine. Doar afișajul indica prost
Dețin o interfața de diagnoza . M-ar ajuta pașii de urmat.

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[unixro Senior Member Find all posts View Profile Close unixro]

@ClaudiuRo , scoti bateria bei o cafea, pui bateria. golesti un plin sau 2

[ClaudiuRo Member Find all posts View Profile Close ClaudiuRo]

Da....cred ca asa am sa fac [emoji847]


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