Tema: Sacar codigos de error cherokee ZJ Motor y transmision

Buenos dias, les traigo este how to de como sacar los codigos de error de la cherokee ZJ que comprende aproximadamente de 1993-1998... Seguro tambien funcione para las soport, en este caso se hizo en una 6 cilindros en linea 4x4

En esta pagina sacan el significado de codigos muchas amrcas de autos:

http://www.actron.com/code_lookup.php



Bueno lo primero a tomar en cuenta es que debe tener el check engine encendido:



para iniciar el proceso con la camioneta apagada se hace lo siguiente con el switch de encendido: comenzando con la posicion en reposo que seria off...

off-on-off-on-off-on (Se deja en on)

Este procedimiento tiene que hacerse en un lapso aproximado de 5 segundos...

Despues de esto el chek engine comenzara a flashear, tomandose en cuanto que cada flash equivale a un numero, el cual deberia comenzar con 12 que indica que iniciara el proceso de extraccion de codigos: o que la bateria ha sido desconectada en los ultimos 50 arranques...

Y seria asi y los puntos son una pausa que hace entre uno y otro:

flash ..... flash flash (12)

Despues de esto ya nos da los codigos de fallas

y finalizara con 55 que indica el fin de la extraccion de codigos:

flash flash flash flash flash..........flash flash flash flash flash (55)

Older Model Computer Codes (OBDI) - IMPORTANT! Codes may be different for newer vehicles starting circa 1996.
11 No ignition reference signal detected during cranking OR timing belt skipped one or more teeth; OR loss of either camshaft or crankshaft position sensor.
12 Battery or computer recently disconnected
13 MAP sensor or vacuum line may not be working
14 MAP sensor voltage below .16V or over 4.96V
15 No speed/distance sensor signal
16 Loss of battery voltage detected with engine running
17 Engine stays cool too long (bad thermostat or coolant sensor?)
OR
17 (1985 turbo only): knock sensor circuit
21 Oxygen sensor signal doesn't change (stays at 4.3-4.5V). Probably bad oxygen sensor
22 Coolant sensor signal out of range - May have been disconnected to set timing
23 Incoming air temperature sensor may be bad
24 Throttle position sensor over 4.96V
25 Automatic Idle Speed (AIS) motor driver circuit shorted or target idle not reached
26 Peak injector circuit voltage has not been reached (need to check computer signals, voltage reg, injectors)
27 Injector circuit isn't switching when it's told to (TBI)
OR (MPI) injector circuit #1 not switching right
OR (turbo) injector circuit #2 not switching right
OR (all 1990-) injector output driver not responding
- check computer, connections
31 Bad evaporator purge solenoid circuit or driver
32 (1984 only) power loss/limited lamp or circuit
OR
32 EGR gases not working (198 - check vacuum, valve
OR
32 (1990-92) computer didn't see change in air/'fuel ratio when EGR activated - check valve, vacuum lines, and EGR electrical
33 Air conditioning clutch relay circuit open or shorted (may be in the wide-open-throttle cutoff circuit or normal on early 80's models if you don't have air conditioning)
34 (1984-86) EGR solenoid circuit shorted or open
OR
34 (1987-1991) speed control shorted or open
35 Cooling fan relay circuit open or shorted
OR
35 idle switch motor fault - check connections
36 (turbo only) Wastegate control circuit open or shorted
37 Shift indicator light failure, 5-speed
OR
part throttle lock/unlock solenoid driver circuit (87-89)
OR
solenoid coil circuit (85-87 Turbo only)
OR
Trans temperature sensor voltage low (1995 and on)
41 Alternator field control circuit open or shorted
42 Automatic shutdown relay circuit open or shorted
OR
42 Fuel pump relay control circuit
OR
42 Fuel level unit - no change over miles
OR
42 Z1 voltage missing when autoshutdown circuit energized (The Z1 voltage is the voltage of the circuits fed by the autoshutdown relay. This typically includes fuel pump and switched-battery feed to the ignition coil)
43 Peak primary coil current not achieved with max dwell time
OR
43 Cylinder misfire
OR
43 Problem in power module to logic module interface
44 No FJ2 voltage present at logic board
OR
44 Logic module self-diagnostics indicate problem
OR
44 Battery temperature out of range
45 Turbo boost limit exceeded (engine was shut down by logic module)
46 Battery voltage too high during charging or charging system voltage too low
47 Battery voltage too low and alternator output too low
51 Oxygen sensor stuck at lean position (this may be tripped by a bad MAP sensor system causing a rich condition. If you get hot rough idle and stalling, especially on deceleration, accompanied by flooded engine and difficulty restarting, that can be a bad MAP sensor causing the O2 sensor to try to compensate. If you get poor cold driveability, stumbling and bucking, and acceptable warm driving with poor gas mileage (a drop of 10 mpg or more), that is usually the O2 sensor.
OR
51 Internal logic module fault ('84 turbo only).
52 Oxygen sensor stuck at rich position
OR
52 Internal logic module fault ('84 turbo only)
53 Logic module internal problem
54 No sync pickup signal during engine rotation (turbo only)
OR
54 Internal logic module fault ('84 turbo only) - or camshaft sensor/distributor timing
55 End of codes



Bueno y ahora para sacar los codigos de error de la transmision en casi el mismo procedimiento:



Localizamos el switch del overdrive:

comenzamos con el switch de encendido el auto en off:

off-on (activamos overdrive y se enciende el foquito)-off-on-off-on

de igual forma el foquito del overdrive comienza a flashear al igual que posiblemente el check engine pero en este caso nos interesa el overdrive para sacar los codigos de error de la transmision y terminara con el 55 como en el procedimiento anterior:

11 - engine RPM Input
12 - Output shaft sensor input
13 - Vehicle speed input
14 - Governor pressure sensor input
15 - throttle position sensor input
16 - transmission fluid temp input
17 - overdrive override switch input
18 - System voltage
19 - Internal fault in module
21 - Governor pressure solenoid output
22 - overdrive solenoid output
23 - converter clutch solenoid output
24 - overdrive override lamp output
25 - Internal fault in module
26 - Governor pressure sensor offset drift
55 - end of codes


En este caso a mi cuñado le salio el error 23 .. converter clutch solenoid output mismo convertidor que acaba de cambiarlo usado por recomendación del mecanico y tambien cambio el Governor pressure solenoid output pero este fue nuevo y no lo arrojo como error... asi que espero les sea de utilidad para los cherokeeros....