Odczytywanie kodów ECU - samodiagnostyka

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1 Odczytywanie kodów ECU - samodiagnostyka tabela kodów ECU i OBD (do zczytania Code Readerem - samochody z OBD II po 1996 roku) tutaj Accordy 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) 1/16

2 ECU z "oczkiem" (dioda) ECU bez diody 2/16

3 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 3/16

4 Inne uzłożenie konektora serwisowego (zwiera sie t± dwupinow± część po lewej) W civiku coupe po 1996 roku styk jest po stronie kierowcy 4/16

5 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 5/16

6 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 16. Fuel Injector Wtryskiwacze 17. Vehicle Speed Sensor (VSS) Czujnik redkosci (Electrical problem in signal circuit) (Problem in fuel injector circuit ) (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 41. Oxygen Sensor Heater Problem z sonda LAMBDA Problem in automatic transmission control unit and ECU circuit (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 AccordCivic CRV Odyssey Oxygen Sensor "A" (Primary) 2 AccordCivic CRV Odyssey n/a n/a n/a Oxygen Sensor "B" 3 AccordCivic CRV Odyssey MAP Sensor (Manifold Absolute Pressure) 4 AccordCivic CRV Odyssey 6/16

7 CKP Sensor (Crankshaft Position Sensor) 5 Accord Civic CRV Del Odyssey Sol 85- * MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping * exc Accord Civic CRV Odyssey ECT Sensor (Engine Coolant Temperature) 7 Accord Civic CRV Odyssey TP Sensor (Throttle Position) 8 Accord Civic CRV Odyssey TDC Sensor (Top Dead Center) 9* Accord Civic CRV Odyssey 85-** CYP Sensor (Cylinder) * not a valid code for any throttle body injection Hondas ** not a valid code for V-6 engines 10 Accord Civic CRV Odyssey IAT Sensor (Intake Air Temperature) 12 Accord Civic CRV Odyssey n/a * n/a * EGR Lift Sensor (Exhaust Gas Recirculation) * not a valid code if car is not equipped with an EGR valve (some Civic models are not) 13 Accord Civic CRV Odyssey BARO Sensor (Atmospheric Pressure) 14 Accord Civic CRV Odyssey /16

8 IAC Valve (Idle Air Control) 15 AccordCivic CRV Odyssey n/a Ignition Output Signal missing or defective ignition output signal 16 Accord Civic CRV Odyssey n/a Fuel Injector System defective circuit or unplugged / defective fuel injector 17 Accord Civic CRV Odyssey VSS (Vehicle Speed Sensor) 19 Accord Civic CRV Odyssey n/a 88- n/a n/a n/a 95 Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve 20 Accord Civic CRV Odyssey Electrical Load Detector 21* Accord Civic CRV Del Odyssey Sol 94- ** n/a n/a n/a 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 Odyssey n/a n/a 93-` 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 Odyssey * 96- n/a n/a n/a 92- KS (Knock Sensor) * not a valid code if V-6 engine 30 Accord Civic CRV Odyssey 90- * n/a n/a n/a n/a * Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB 8/16

9 * not a valid code for Accord Civic CRV Odyssey n/a n/a n/a n/a Automatic Transmission Signal "B" 41 AccordCivic CRV Odyssey n/a Primary Oxygen Sensor - Heater circuit malfunction 43 Accord Civic CRV Odyssey n/a n/a Fuel Supply System defective or malfunctioning fuel supply system 45 AccordCivic CRV Odyssey 97- n/a System Too Lean or Too Rich malfunction in the fuel monitoring systems 48 Accord Civic CRV Odyssey 92- n/a n/a n/a n/a n/a LAF Sensor (Lean Air Fuel) 54 Accord Civic CRV Odyssey n/a n/a n/a CKF Sensor (Crankshaft Speed Fluctuation) 58 Accord Civic CRV Odyssey * n/a n/a n/a n/a n/a n/a TDC Sensor 2 (Top Dead Center) * with V-6 engine only 61 AccordCivic CRV Odyssey 97- n/a Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response 63 Accord Civic CRV Odyssey n/a Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response 65 Accord Civic CRV Odyssey n/a Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater 9/16

10 67 AccordCivic CRV Odyssey 97- n/a Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system 70 Accord Civic CRV Odyssey n/a n/a Automatic Transmission malfunction with the automatic transmission controls 71 Accord Civic CRV Odyssey n/a Cylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 72 Accord Civic CRV Odyssey n/a Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 73 Accord Civic CRV Odyssey n/a Cylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 74 Accord Civic CRV Odyssey n/a Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 75 Accord Civic CRV Odyssey * 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 Odyssey * 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 AccordCivic CRV Odyssey n/a n/a n/a Exhaust Gas Recirculation insufficient flow detected 86 AccordCivic CRV Odyssey 97- n/a ECT Sensor (Engine Coolant Temperature) circuit range / performance problem 90 AccordCivic CRV Odyssey 10/16

11 97- n/a n/a n/a 97- Evaporative Emission Control System leak detected in the fuel tank area 91 AccordCivic CRV Odyssey n/a n/a n/a 97- Fuel Tank Pressure Sensor low input 92 AccordCivic CRV Odyssey 97- n/a Evaporative Emission Control System insufficient purge flow Honda ECU Codes Source: Honda Service Manual / Code Accord Oxgen Sensor "A" (Primary) 2 Accord Oxgen Sensor "B" (Primary) 3 Accord Manifold Absolute Pressure (MAP) Sensor 4 Accord Crankshaft Position Sensor (CKP) 5 Accord 11/16

12 Manifold Absolute Pressure (MAP) Sensor Mechanical problem/disconnected pipingb 6 Accord Engine Coolant Temperature (ECT) Sensor Code Accord Throttle Position (TP) Sensor 8 Accord Top Dead Center (TDC) Sensor 9* Accord 85-** Cylinder Position (CYP) Sensor *N/A to any throttle body injection Honda's **N/A to V-6 engines 10 Accord Intake Air Temperature (IAT) Sensor b 12 Accord * 85-91* 85- Exhaust Gas Recirculation (EGR) Lift Sensor *N/A if your car is not equipped with an EGR valve Code Accord Atmospheric Pressure (BARO) Sensor 14 Accord Idle Air Control (IAC) Valve 15 Accord Ignition Output Signal Missing or defective ignition output signal 16 Accord Fuel Injector System Defective cicuit or unplugged/defective fuel injectorb 12/16

13 17 Accord Vehicle Speed (VSS) Sensor 19 Accord Automatic Trans. Lock Up Control Solenoid Valve Defective circuit or unplugged/defective solenoid valve Code Accord Electrical Load Dectector 21* Accord 94-** VTec Solenoid Valve Defective cicuit or unplugged/defective solenoid valve *N/A if your car is not a VTec **N/A to V-6 engines 22* Accord VTec Oil Pressure Switch Defective cicuit or unplugged/defective oil pressure switch *N/A if your car is not a VTec 23 Accord * 92- Knock (KS) Sensor *N/A to V-6 engines 30 Accord * Automatic Trans. Signal: "A"/SEAF/SEFA/TMA or TMB *Except for Accord Automatic Trans. Signal: "B" Code Accord /16

14 Primary Oxygen Sensor: Heater Circuit Malfunction 43 Accord Fuel Supply System Defective or malfunctioning fuel supply system 45 Accord System Too Lean or Too Rich Malfunctioning in the fuel monitoring systems 48 Accord 92- Lean Air Fuel (LAF) Sensor 54 Accord 96 Crankshaft Speed Fluctuation (CKF) Sensor 58 Accord * Top Dead Center (TDC) Sensor 2 *V-6 Engine only Code Accord 61 Oxygen Sensor, Heated: Sensor 1 (Primary) High Voltage, Low Voltage, or Slow Response 63 Accord Oxygen Sensor, Heated: Sensor 2 (Secondary) High Voltage, Low Voltage, or Slow Response 65 Accord Oxygen Sensor Heater (Secondary) Malfunctioning or defective oxygen sensor heater 67 Accord Catalyst System Efficiency Below Threshold Malfunctioning or defective catalyst system 70 Accord Automatic Transmission Malfunctioning of the autmoatic transmission controls 71 Accord Cylinder 1 Misfire or a Random Misfire 14/16

15 Code Accord 72 Cylinder 2 Misfire or a Random Misfire 73 Accord Cylinder 3 Misfire or a Random Misfire 74 Accord Cylinder 4 Misfire or a Random Misfire 75 Accord * Cylinder 5 Misfire or a Random Misfire *Applies only to V-6 engines 76 Accord * Cylinder 6 Misfire or a Random Misfire *Applies only to V-6 engines 80 Accord Exhaust Gas Recirculation Insufficient Flow Detected Code Accord 86 Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem 90 Accord Evaporative Emission Control System Leakage in the fuel tank area 91 Accord 97- Fuel Tank Pressure Sensor Low Input 92 Accord Vaporative Emission Control System Insufficient Purge Flow OBD0 codes 15/16

16 LED display Symptom - Possible Cause for 15 through 17 Honda Vehicles Note: OOOO all 4 lamps on, XXXX all 4 lamps off OOOO Engine will not start - Check for disconnected control unit ground connector. Also check for a loose connection at the ECU main relay resistor. Possible faulty ECU. OOOO Engine will not start - Check for a short circuit in the combination meter or warning light wire. Also check for a disconnected control unit ground wire. Possible faulty ECU. OOOX System does not operate - Faulty ECU OOXO System does not operate - Faulty ECU OOXX Fuel-fouled spark plugs, engine stalls frequently - Check for a disconnected MAP sensor coupler or an open circuit in the MAP sensor wire. Also faulty MAP sensor. OXOO System does not operate - Faulty ECU. OXOX Hesitation, fuel-fouled spark plugs or engine stalls frequently - Check for disconnected MAP sensor vacuum hose. OXXO High idle speed during warm-up, continued high or hard starting at low temperature - Check for disconnected coolant temperature sensor connector or an open circuit in the coolant temperature sensor wire. Also faulty Coolant Temperature sensor. OXXX Poor engine response when opening the throttle rapidly, high idle speed or engine does not rev-up when cold - Check for a disconnected throttle angle sensor connector. Also check for an open circuit in the throttle angle sensor wire. Also faulty throttle angle sensor. XOOO Engine dose not rev-up, high idle speed or erratic idling - Check for a short or open in the crank angle sensor wire. Spark plug wires interfering with the crank angle sensor wire. Also faulty crank angle sensor. XOOX Same as above (XOOO) XOXO High idle speed or erratic idling when very cold - Check for disconnected intake air temperature sensor or an open circuit in the intake air temperature sensor wire. Also faulty Intake Air Temperature sensor. XOXX Continued high idle speed - Check for a disconnected idle mixture adjuster sensor coupler or an open circuit in the idle mixture adjuster sensor wire. Also faulty Idle Mixture Adjuster sensor. XXOO System does not operate at all - Faulty ECU XXOX Poor acceleration at high altitude when cold - Check for a disconnected atmospheric pressure sensor coupler or an open circuit in the atmospheric pressure sensor wire. Also faulty Atmospheric Pressure Sensor. XXXO System does not operate at all - Faulty ECU XXXX Same as above (XXXO) "Certyfikowane" procedury odczytu błędów ECU zamieszczono też w dziale INSTRUKCJE w dokumentacji wtrysku i zasilania paliwem. Wombat. pazdziernik 2002/2004 / Warszawa 16/16