ALPS ELECTRIC Co., LTD
2.2.Engine Start
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User pushes / operate the engine start button / knob.
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ECU sends LF-challenge via interior antenna.
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FOB sends RF-response to the ECU.
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Immobilizer ECU receives and authorize the response.
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Engine controller ECU receives the authorization for engine strat.
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Start the engine.
Figure 3
2.3.Engine Stop
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User pushes / operate the engine stop button / knob.
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ECU communicates with the other ECU for engine start request.
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Engine controller ECU receives the request.
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Stop the engine
Figure 4
LF
RF
FOB
