ETS ECU
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1. Move driver's seat to fully forward position with backrest also angled forward.
2. Disconnect battery ground cable.
3. Loosen two clips and fold carpet up under seat.
4. Remove protecting plate mounting screw. Position plate aside.
5. Remove control unit from under spring tensioned bracket. Disconnect connector housing from ECU.
6. Remove cover plate. Lift out ECU and disconnect connector.
7. Reverse procedure to install. Calibrate new ECU.