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Method 1: Simply remove the negative battery terminal, and hold the brake pedal in for at least 30 seconds. (NOTE: The SOLE purpose of holding the brake pedal in is to drain any residual power from the electrical system, allowing the computer to reset itself). Then, reattach the negative battery terminal.
Method 2: Remove your center console (the trim piece around the shift knob). The ECU is located directly underneath/behind the radio and ashtray underneath this trim piece. This does not require any tools (on most models) since the piece just pops up. Then, simply unplug ALL of the wiring harnesses that plug into the ECU (it is a gray metal box with a yellow plastic connector on it) and leave it unplugged for a few minutes. Then, simply plug them back in.
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