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Antiguo 16-08-2005, 13:30:17   #3
FJ40Diesel
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Fecha de Ingreso: May 2005
Ubicación: Santiago
Edad: 42
Mensajes: 603
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Hola, para el 22RE tengo esta info. La pego en inglés... sorry. (lós codigos q hablan son los del OBD del computador)

La info la saque de unos documentos q tengo en mi PC pero q subí a la Red.
http://www.twistedandes.com/viewtopi...=199942#199942


Saludos!


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CODE NO. 52 - KNOCK SENSOR CIRCUIT

CAUTION: If ECM replacement is instructed in following testing,
always ensure ECM harness connector and ground circuit are
okay. If either are suspect, repair and repeat testing to
confirm ECM malfunction.

Circuit Description
Knock sensor is located on cylinder block below coolant pipe.
Sensor generates voltage when engine block vibrates due to knocking.
Code is set when there is no knock sensor signal to ECM with engine
speed of 1200-6000 RPM. Possible causes are:

* Open or short in knock sensor circuit.
* Knock sensor (loose).
* ECM.

Diagnosis & Repair
1) Ensure ignition is off. Access ECM behind right kick
panel. Disconnect ECM connectors. Using ohmmeter, measure resistance
between terminal KNK and ground. If resistance is infinite, go to next
step. If resistance is NOT infinite, go to step 3).

2) Disconnect knock sensor harness connector. Measure
resistance between sensor terminal and sensor housing. If resistance
is infinite, go to next step. If resistance is NOT infinite, replace
sensor.

3) Inspect circuit between knock sensor and ECM for open or
short. Repair as needed. If circuit is okay, substitute knock sensor
with known good sensor and retest. If Code 52 is still present,
replace ECM and retest. If code is no longer present, replace sensor.


CODE NO. 53 - KNOCK CONTROL CPU MALFUNCTION

CAUTION: If ECM replacement is instructed in following testing,
always ensure ECM harness connector and ground circuit are
okay. If either are suspect, repair and repeat testing to
confirm ECM malfunction.

Circuit Description

See CODE NO. 52 - KNOCK SENSOR CIRCUIT. Code is set when ECM
is detected to be faulty in regard to knock control. ECM is the only
possible cause.
Diagnosis & Repair
If any codes other than Code 53 is displayed, diagnose and
repair those codes first. If only Code 53 is displayed, replace ECM
and retest.
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