ECU Computer Reset Today at 5K Service
#16
Tech Info Resource
iTrader: (2)
It's learning gear selection patterns. If you're light on the gas, it will default to finding the highest gear as quickly as possible. If you drive harder, it will hold in gear longer for better acceleration. You can do the same thing by hitting the ECT power switch for those times when you want it to be more aggressive.
The engine will self tune in a matter of minutes, so pulling the fuses really does nothing to change the engine tune for any length of time. It really only affects the transmission.
The engine will self tune in a matter of minutes, so pulling the fuses really does nothing to change the engine tune for any length of time. It really only affects the transmission.
#17
Tech Info Resource
iTrader: (2)
I'm glad to see this has been successful for some of you guys.
Question. I understand that if you disconnect the negative to the battery, the radion presets will be wiped. What about other presets such as seats, etc. BUT MORE IMPORTANTLY, THE NAVIGATION SETTINGS??
Anybody know?
Thanks
Question. I understand that if you disconnect the negative to the battery, the radion presets will be wiped. What about other presets such as seats, etc. BUT MORE IMPORTANTLY, THE NAVIGATION SETTINGS??
Anybody know?
Thanks
#18
11 Second Club
iTrader: (2)
I'm glad to see this has been successful for some of you guys.
Question. I understand that if you disconnect the negative to the battery, the radion presets will be wiped. What about other presets such as seats, etc. BUT MORE IMPORTANTLY, THE NAVIGATION SETTINGS??
Anybody know?
Thanks
Question. I understand that if you disconnect the negative to the battery, the radion presets will be wiped. What about other presets such as seats, etc. BUT MORE IMPORTANTLY, THE NAVIGATION SETTINGS??
Anybody know?
Thanks
Lobux..you said you lost your Nav? Now I'm wondering if there is a difference to removing positive or negative from the battery to do a reset.
#19
Tech Info Resource
iTrader: (2)
The fuse is on the positive side. I pulled the TV1 fuse to intentionally reset my nav. It killed everything. Same as if I'd pulled the battery cable. I'd test it but I don't want to lose all my nav data. I could test this just before I leave for Atlanta though since all the California data will be useless there. That won't be for another month though.
Stuff I lost by disconnecting power - seat position and key fob affinity, seat position, nav data, window position (had to re-initialise the windows.) None of this was from disconnecting the battery, it was from disconnecting various parts for other reasons. Oh, yeah, I did reset the ECM once because I disconnected it and pulled it out to see if I could identify the processors in it.
Stuff I lost by disconnecting power - seat position and key fob affinity, seat position, nav data, window position (had to re-initialise the windows.) None of this was from disconnecting the battery, it was from disconnecting various parts for other reasons. Oh, yeah, I did reset the ECM once because I disconnected it and pulled it out to see if I could identify the processors in it.
Last edited by lobuxracer; 04-09-07 at 08:29 PM.
#22
Super Moderator
This is a trick we have been doing for a while in the RX300 forum and involves pulling a single EFI fuse or the negative battery cables. Resets CELs temporarily, unless something really is wrong. I find that that pulling both cables has a better effect and it needs to be more than a minutes as sometimes there is some juice left in the system/capacitors.
#24
Tech Info Resource
iTrader: (2)
Not necessarily. You really need an OBDII scanner to reset the DTCs reliably.
#29
Thanks for the information, again CL is a good source when your in a bind because of the members here. Had to reset my ECU when i got a check engine/VSC error after my fujita intake got installed. Anyhow, my question is i noticed that a few things were reset such as avg gas mileage and the seatbelt alarm, but how about the settings for the car that the dealer does for you on your first service? i.e. the lighting level for your automatic headlights which i had asked to be set at level 2, are they reset back to default now too?