Brico diganosticos AAN ABY ADU

Joseps · 15 de Diciembre del 2007

Ya que lo he puesto en unas respuestas recopilo todo en un único post para que sea mas localizable:

Dos partes, una para sacar por destellos los diagnosticos y otra para hacer un test de actuadores eléctricos y borrar memoria de errores. Al final de todo la lista de códigos.

Para tener la luz de diagnóstico o bien sacamos el cuadro y ponemos la bombilla del chivato de avería de motor que traen algunos ya cableada si tenemos suerte (el mío la traia)

Y sino podemos poner provisionalmente un led o bombilla exterior y verlo ahi. Este es el diagrama de donde poner la bombilla exterior. Hay que buscar los conectores de diagnostico (en el S4/S6 en el vano motor, lado conductor bajo la tapa del vierteaguas, en los limpias)

(si donde pone led se pone una bombilla de 12v no hace falta la resistencia, mas facil de hacer)

Si tenemos ya bombilla cuadro (o para el test de actuadores hay que cortocircuitar únicamente donde pone jumper. concretamente "Ground" en el Negro y "L" en el marrón en este otro gráfico

Mas cómodo que un jumper son dos cables largos pelados en el extremo que cortocircuitaremos (o currandonoslo poniendo entre ellos un interruptor). ASí podremos verlo sentaditos en el asiento si tenemos la bombilla del cuadro :flwrs:

Una nota final: esto solo saca y borrar errores de la unidad de motor. No nos da los del clima (que se hacen desde el truco del clima), ni borra los del clima o error del ABS o Airbag por ejemplo, que o bien se guardan en memorias temporales de la propia unidad como el del ABS o el clima o que en el peor de los casos necesitan máquina para borrarse (Airbag).

--------------------------------------------------------------------------------------------------------

PARA SACAR LOS CODIGOS DE DIAGNÓSTICO

Los códigos se lanzan cortocircuitando 4 segundos el jumper wire, o los dos cables largos que comento, estando el contacto dado (da igual el motor en marcha o no). Entonces nos muestra por destellos el primer codigo de error en este formato:

x destellos - pausa de 2'5segundos

ejem... 2 destellos <2'5s> 1 destello <2'5s> 1 destello <2'5s> 1 destello sería el 2111

Lo apuntamos y hacemos otro cortocircuito de 4 segundos para el siguiente código.

Así hasta que nos de el 0000 (nada). Cancelamos el test quitando el contacto. No se borran los errores haciendo esto, se podrían borrar haciendo el test de actuadores que he puesto mas arriba.

--------------------------------------------------------------------------------------------------------

PARA LANZAR EL TEST DE ACTUADORES Y BORRAR LA LISTA DE ERRORES ALMACENADA

Con el contacto apagado ponemos los cables y los cortocircuitamos.

Ponemos el contacto pero NO arrancamos el motor

Separamos los cables y el sistema queda preparado para la prueba (si tenemos luz de avería de motor empieza a lanzar ahora códigos de error)

Para iniciar cada test con la mano abrimos y cerramos la mariposa del acelerador: Entonces mandara una señal de prueba a:

1- inyectores del 1-2-4-5-3 , con cada apertura-cierre de la mariposa pasa al siguiente inyector. Cada inyector hace 5 clicks que se pueden oir o tocar

Una apertura y cierre y pasa a:

2 - estabilizadora de ralentí

Aqui tenemos que cortocicuitar durante 4 segundos y luego soltar los cables:

3 - canister

cortocircuito de 4 segundos

4 - N75

FIN DE TEST.

OJO!! Si no queremos borrar la lista de errores (porque no la hemos apuntado o queremos que nos lo vea nuestro mecánico) hay que parar aqui y quitar el contacto. Si hacemos un corto de 4 segundos mas:

5 - BORRADO DE MEMORIA DE ERRORES ¿alguien esta en limp mode?

Para volver a hacer los test hay que quitar el contacto 20 segundos. OJO! los inyectores no se volverán a probar si no se pone el motor en marcha al menos una vez entre prueba y prueba.

--------------------------------------------------------------------------------------------------------

LISTADO DE ERRORES

Finalmente en perfecto ingles el listado de códigos que tenía guardados, aunque pone para AAN yo creo que servirán:

El codigo, la descripcción y una pequeña explicación del síntoma (bastante orientativa). Para quien no haya probado el error 2111 sale siempre si tenemos el motor parado (los diagnósticos no son como el test de actuadores, ya que se pueden hacer en marcha)

# 111 (Blink Fault Code), 65535 VAG1551/2 Fault Code Number

Engine Control Unit (ECU) Defective memory circuits,

Incorrect Checksum for internal memory (EPROMs)

(this can occur on some modified ECU's) Check ECU ground connections, Check EPROM programming

Symptom: Check engine light may come on

# 1231 (Blink Fault Code), 00281 VAG1551/2 Fault Code Number (S4/S6 with AAN engine Only)

Vehicle Speed Sensor (G68),

Open circuit or short circuit, speed sensor malfunctioning

Symptom: A/C compressor does not shut off during wide open throttle in 1st gear

# 2111 (Blink Fault Code), 00513 VAG1551/2 Fault Code Number

RPM sensor (G28)

Open or short circuit, sensor malfunction

Defective sensor & cables, metal fragments on flywheel teeth

Symptom: Engine will not start, misfires, may stop running

NOTE: I have seen this fault code occur after cranking the engine during a no start condition

in a few rare cases where there was nothing wrong with the RPM sensor

# 2112 (Blink Fault Code), 00514 VAG1551/2 Fault Code Number

Timing reference sensor, (G4) (located 62 degrees BTDC)

Sensor malfunction, Flywheel pin damaged/missing, Mis-located Sensor,

distance to flywheel pin greater than 1.2mm (3/64 inch), wiring shielding problem for G4,

hall sensor out of adjustment (3B and early AAN engines only)

Symptom: Engine will not start, possible low power

NOTE: I have seen this fault code occur after cranking the engine during a no start condition

in a few rare cases where there was nothing wrong with the Reference sensor or flywheel pin

# 2113 (Blink Fault Code), 00515 VAG1551/2 Fault Code Number

(G40) Hall sensor in distributor

(3B, early AAN engines) or camshaft position Hall Effect sensor later S4/S6 AAN engine).

Distributor alignment, faulty sender, Mis-located sensor & distributor, Cam timing possibly incorrect on AAN engine, Check lower Crankshaft Gear keyway

Symptom: Engine will not start, power loss, check engine light may come on during driving above certain RPM

# 2121 (Blink Fault Code), 00516 VAG1551/2 Fault Code Number

Idle switch problem

Switch open circuit, stuck closed Switch defective (Internal solder connections intermittent) or wiring problem

# 2141 (Blink Fault Code), 00535 VAG1551/2 Fault Code Number

Knock regulator #1

Excessive knock, timing is being retarded by maximum amount,

Symptom: Low boost on 20V, Fuel octane too low, Excessive Compression, excessive boost

# 2142 (Blink Fault Code), 00524 VAG1551/2 Fault Code Number

Knock sensor #1 (G61)

Open or short circuit, Defective sensor Check sensor and wiring

Symptom: Timing retarded, High fuel consumption, power loss, Boost pressure not attained

# 2143 (Blink Fault Code),00536 VAG1551/2 Fault Code Number

Knock sensor #2, (Cylinders 3, 4, 5)

Excessive knock, timing is being retarded by maximum amount.

Symptom: Fuel octane too low, Excessive Compression, excessive boost

# 2144 (Blink Fault Code), 00540 VAG1551/2 Fault Code Number

Knock Sensor #2, (G66) (Cylinders 3, 4, 5)

Open or short circuit, Defective sensor or wiring

Symptom: Timing retarded, High fuel consumption, power loss, Boost pressure not attained

# 2212 (Blink Fault Code), 00518 VAG1551/2 Fault Code Number

Throttle potentiometer,

short circuit to + or to ground,moisture or corrosion in harness connector

Check throttle potentiometer resistance from idle to full throttle.

Symptom: Lack of power or boost pressure is not attained

# 2214 (Blink Fault Code), 00543 VAG1551/2 Fault Code Number

Engine Over-revved

Engine has exceeded rev limit 7440 RPM on 20V engine) Driver has heavy right foot.

# 2221 (Blink Fault Code), 00575 VAG1551/2 Fault Code Number for 3B 20V Turbo engine ONLY

Manifold Pressure too low, or too high, control difference.

Vacuum hose to ECU pressure sensor Vacuum hose missing or leaking, Check hose

Symptom: Loss of Power

# 2222 (Blink Fault Code), 00519 VAG1551/2 Fault Code Number

ECU Internal Pressure sensor (G71)

Pressure sensor defective,

Repair or replace ECU or replace internal pressure sensor

# 2223 (Blink Fault Code), 00528 VAG1551/2 Fault Code Number

Altitude Sensor (F96)

Break in wiring or short to + or ground Symptom:

Symptom: Loss of power, boost pressure is not attainable

# 2224 (Blink Fault Code), 00544 VAG1551/2 Fault Code Number

Maximum Charge Pressure Exceeded,

Intake air leak after turbocharger, ECU Vacuum/pressure line has leak between intake manifold

Waste gate or pressure hose, Waste Gate Solenoid/hose problem, ECU pressure sensor malfunction

Symptom: Misfire during wide open throttle, boost pressure too high

# 2231 (Blink Fault Code), 00533 VAG1551/2 Fault Code Number

Idle Speed Control Valve (N71)

Idle speed adaptation maximum limit exceeded or Minimum adaptation limit not reached

Sticky or binding ISV, Mass Air Flow Meter (G70) offset, additional air introduced between G70 and N71

Symptom: Idle speed too low, or too high, Add air leak.

# 2234 (Blink Fault Code), 00532 VAG1551/2 Fault Code Number

Supply Voltage Problem, ECU (J220) supply voltage too low or too high

Poor ECU ground connection at intake manifold, battery discharged, check battery current drain with engine off

# 2241 (Blink Fault Code), 00538 VAG1551/2 Fault Code Number (3B 20V Turbo Engine Only)

Second Knock Sensor, (G61)

Excessive knock, maximum control limit exceeded,

open circuit in signal wire from G28 engine speed sensor or G4 ignition timing sensor or G28 and G4 are reverse connected to ECU (J220), Fuel Octane too low, Abnormal Engine noises, Open circuit in knock sensor shielding (G61)

Symptom: low boost, Moderate power loss, higher fuel consumption, top speed not attainable

# 2312 (Blink Fault Code), 00522 VAG1551/2 Fault Code Number

Coolant sensor (G62)

Open or short circuit, Defective sensor or wiring, high resistance between sensor G62 and ECU J220

Symptom: Cold starting difficulties at low temperatures, Poor idle and acceleration during warm up

# 2322 (Blink Fault Code), 00523 VAG1551/2 Fault Code Number

Inlet air temp sensor (G42)

Open or short circuit, Defective sensor or wiring

Symptom: Slight power loss, Increase in fuel consumption

# 2324 (Blink Fault Code), 00553 VAG1551/2 Fault Code Number

Mass Air Flow (MAF) Sensor (G70)

Open or short circuit, defective sensor, Signal too low or too high, Open circuit between G70 and ECU J220, Voltage supply interrupted or short to ground

Symptom: system in limp home mode, very poor performance and acceleration, difficult to accelerate

# 2341 (Blink Fault Code), 00537 VAG1551/2 Fault Code Number

Oxygen Sensor Control Limit exceeded,

fuel pressure too low or too high, intake or exhaust leak, defective ignition system component, intake air leak after air mass sensor, O2 sensor is faulty

Symptom: CO before catalyst is below 0.3% or greater than 1.0%, Extremely lean or overly rich exhaust, Spark Plug fouling

# 2342 (Blink Fault Code), 00525 VAG1551/2 Fault Code Number

Oxygen Sensor (G39)

Sensor Wiring or Sensor defective Heat resistor in sensor defective, Signal wiring shorted to ground, Fuel tank empty, Ignition system component failure, air leak at mass air flow sensor, air leak in exhaust pipe before catalyst, poor ECU ground wire connection at intake manifold.

Symptom: Emissions not within specifications, increased fuel consumption, rich exhaust, spark plug fouling,

Carbon Monoxide (CO) percentage above 3%,

# 2413 (Blink Fault Code), 00561 VAG1551/2 Fault Code Number

Mixture Adjustment,

Adaptation limit exceeded, Adaptation limit not reached, Leakage in exhaust system before 3 Way catalytic converters, Incorrect signal for Mass Air Flow Sensor, Spark plugs, ignition coil(s), or Ignition Coil Power output stage malfunctioning

Symptom: Rich mixture, increased fuel consumption

# 3424 (Blink Fault Code), 00824 VAG1551/2 Fault Code Number (3B 20V Turbo Engine Only)

Fault Lamp Trigger Defective, short to + or to ground

Symptom: "Check" engine light on dash does not light up with ignition on

# 4343 (Blink Fault Code), 01247 VAG1551/2 Fault Code Number

Carbon Canister Solenoid, Evaporative Canister Purge Valve (N80),

Open or short circuit, +12V supply circuit breaker or fuse open?

Symptom: Poor response in part of load range, fuel odors, idle speed or quality may be affected

# 4411 (Blink Fault Code), 01249 VAG1551/2 Fault Code Number

Fuel Injector for Cylinder 1, (N30)

Open or short circuit, +12V supply circuit breaker or fuse open