A mileage in excess of 230,000 km, the assembly autel produced by the French Citroen AL4 sort 4-speed electronically managed automatic transmission 2003 Renault Scenic MPV . Just before this motor vehicle has long been in a lengthy time unsuccessful fix in other places.
Symptom: Posterior take a look at auto in the plant , once the change lever is placed 1 around the load , the transmission immediately into failsafe mode , locked in third gear . For those who phase over the accelerator pedal is mild transmission will never go on into protected mode. Once the change lever is positioned two , the load over , there'll be an affect gear up 2 documents , the oil is not going to go on to ascend 3 files , and instantly enter the failsafe manner. If the shift lever place D placement, the load higher than , appears a file liter 2 information shocks, the oil will go on to enter failsafe manner three information.
x431 decoder into use diagnostic process didn't find any fault codes . Then proceed consistently examination found that when mild accelerator pedal when driving , a equipment up two documents or shock, two information liter 3 data files usually, 3 -liter 4-speed equipment skid , 800r/min just after impact ; due to the fact this automobile isn't specific diagnostic instruments so this failure can only be approximate investigation: sizing alterations will carsoft mb straight have an effect on the load shift and get the job done stress , due to engine load is compact , the doing the job oil strain at about 200kPa shifting method is usually concluded whenever a little load ; major load owing engine load improve, working oil can not be achieved, unable to finish the change , the electronic command device after the hydraulic stress sensor screens will enter protected manner.
Because this automobile usually there are some popular faults , these kinds of since the filter is filthy , the quality just isn't superior , specifically far more soiled filter , in order that the two most important frequency electromagnetic valve typically don happens . So begin in this article for restore , substitution of the new filter and solenoid valves , and interior to your transmission assembly performed an in depth assessment , the final results on the fault persists . Because previous repairs elsewhere within the human body has actually been replaced , therefore the to start with output of the sensor , the input sensors, flow solenoid valves , hydraulic sensors to detect the resistance , are normal. Subsequent, substitute the valve using a solenoid valve , the final results symptom persists . In the meantime, it has been altered to throttle test mvp pro Eu although the chance of failure exists , nonetheless they are involving using Renault vehicles Eu CAN details bus method to transmit communications, so yet again aim on the periphery in the transmission components on . Oil stress sensor malfunction , Eu will give a incorrect sign to enter the mode condition , the solenoid valve regulates the flow of labor hydraulic procedure ailments could also trigger very low entry manner.
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