Introducing Lexus and Toyota ECM Re-flashing

Lexus and Toyota Transponder keys | Lexus ECM locations | Toyota ECM locations



Lexus ECM Locations

LS400 You will find it located under the glove box. This ECM removal takes the most time to remove about 20 minutes max. Use a 10 mm socket to remove the glove box. If it has a CD player remove it. You will see the ECM it has five mini-modules that are attached to the ECM with brackets you most removed them from the ECM before you can remove the ECM from under the dash.

RX300 You will find it located under the glove box. The ECM will be facing up towards you first you must remove the one mini-module that is attached by removing it with a small bladed screwdriver by depressing the tab on the plastic connector. You will then see a nylon wire tie holding up a wire harness carefully remove the nylon wire tie but snipping it with a small pair of side cutters. Be Careful not cut the wire harness. Remove two 10 mm nuts disconnect the wire connectors attached to ECM slide ECM out of auto.

SC300

SC400 You will find this ECM under floor on the passenger side. Lift the carpet back on the passenger side you will see a large plastic hump secured by two 10 mm nuts. Remove the 10 mm nuts and another 10 mm bolt on the other side. Note it is a tight fit and take notice of a bracket that is attaché to the ECM its orientation is unique so be careful how it slides out of the plastic cavity because if you do not place it back into the same position when you re-install the ECM the plastic cover will not secure tightly and possible moisture from snow or rain could enter into the cavity allowing a possible damage to the ECM.

IS300 The ECM is located under the hood in front on the driver’s side just about the headlight. You will see a large black plastic box. Remove two 10 mm nuts from the cover lift the cover and you will see the ECM is attached by another two 10 mm nuts. Remove all wire connectors then slide ECM out of box.