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I have aautomaticaveo2005,and when I goto 80km /hholdlightstarts blinking, I feelthat the boxis working wellmechanically,scan itand give methe codePO741, will be amechanical orelectricalproblem?as the boxwas repaireda fewdays before beingrepairedbuthadthe same problemandwas neutralizedcompletely the box. After turning offand on againthe light goes offas ifitwill reset.
thanks..
The hold light flashing means something is wrng with the transmission, but most of the time that is not the case. what is the box that you are talking about?
Check all of your fuses, there are a bunch on the drivers side dash and some in the engine bay. But yeah, usually it is an electrical problem fo some sorts.
but if this werea fuselightshouldturntostart the car?or that partelectriconly be activatedupon reaching80 km/ h?
based on the code i think you need a fluid change and the "lock up" solenoid cleaned/checked.
The fluid andfilter waschanged, thatI can measure valuesin the"lockup"solenoid to verify that all right?