02 s430 key won’t turn.
stsrt with a new battery and if that doesn’t work then pull up passenger carpet and remove the metal plate to get to the Main fuses
Last edited by tusabes; Oct 10, 2018 at 04:55 AM.


The batteries have no function in operating the ignition system - that is done by inductive power from the ECS.
I still say its your battery - from sitting so long it’s too weak even when charging it up , but it just won’t hold sufficient charge . If you don’t try a new battery your missing an essential step. If you have aaa they will bring a new battery to try for free if it doesn’t work
After you try a new battery , not a used one , the next step then you’re going to need a matched set of key shifter ecu and ignition switch taken from a donor car
all 4 parts must be from the same donor car as they Are coded only to work together . They sell matched sets on eBay for about $350 or you can get it from a local car being parted out . Make sure the year of car and .ecu is same part number as yours
Last edited by tusabes; Oct 10, 2018 at 02:44 PM.





