Lexus IS 250 ECU
#1
4th Gear
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this car it was in pretty good condition, driving the car the Battery light came on stop check battery, Suggested to replaced battery ok replace battery from that moment on there has been a series of problem with the car start with no signal light (intermittent work) then no charging the battery (replace alternator ) still did not charge the battery, driving the car then i notice the sport mode not working ( when going from atomistic to manual mode the numbers 1st 2nd 3rth not shown any more) , then just like that all possible light come on on the dashboard ( of Corse, check engine VCS etc. etc.) so i reset the ECU now i don't have power steering still not charging the battery it is hard to put in gear but once it is in gear drives nice ( but battery is not charging so stop driving the car) i just do not get it what the issue may be if there is any idea out there i like to try it
Jorge
Jorge
#2
Lexus Test Driver
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The loss of power steering indicates the battery may have had the polarity reversed which may be the same thing that took out the new alternator.
By the battery is a clear cover, inspect the fuseable link near the end marked 80A and get the alternator tested, replaced.
By the battery is a clear cover, inspect the fuseable link near the end marked 80A and get the alternator tested, replaced.
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jorgenkim (06-11-22)
#3
4th Gear
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Check the fuses and fuse link all is good check power all is good on the fuse link, wit the new alternator still no charge after replacing it check all the fuses inside and out side of the car ( engine bay, inside LF side and RT side) but still no charge..... scan said Module 3 and 4 ( ***** ) like no communication
#4
4th Gear
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scan said Module 3 and 4 ( ***** ) there still no communication with this 2 modules and nowI've got the VSC, traction control, check engine and AFS and Trac off still no charging the battery, the radiator fan does not come on when driving still no signal light ( hazard light work) try to use manual mode on dashboard flash really quick the selector but it goes away so i supposed it does not work
any ideas i run out of them thanks
any ideas i run out of them thanks
#5
4th Gear
Thread Starter
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Well after much of doing and checking all fuses and relays, come to find out that battery it was not charging because something happened to the microcomputer on the dashboard did a little more research and one of the 4 cables that come from the alternator on of them goes all the way to the back of thee dashboard ........ but i have not yet test to see what happened in there so there ........ if there are any other ideas will be appreciate
thanks
thanks
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1WILLY1
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07-26-10 10:34 PM