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Mitsubishi Electric IMB223-02 User Manual

Immobilizer ecu.
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Immobilizer ECU User's Manual
1. General
The immobilizer system is an electronic anti-theft system.
unauthorized starting such as hot-wiring, etc. The engine would not start until the ID code registered
in the ignition key coincides with the code registered in the immobilizer ECU on the vehicle.
Transponder key
Major components and functions
Name
Transponder
Key ring antenna
Immobilizer ECU
Engine ECU
Handling precaution
(1) When starting the engine, keep metal objects (iron, etc.), electric equipment (cellular phone, electric
razor, etc.) and other immobilizer keys away from the steering handle lock.
(2) Never damage the plastic key bow with a knife or fill transponder or similar articles inside.
Immobilizer ECU
Key ring antenna
Steering handle lock
・Sends ID code to the immobilizer ECU via key ring antenna.
・Supplies power and sends / receives data to and from the transponder by means
of electromagnetic coupling
・Receives the ID code from the transponder and compares it with the code
registered in the immobilizer ECU.
・Sends the condition code to the engine ECU.
[Functions related to the immobilizer system]
・Receives the condition code from the immobilizer ECU and operates to prepare
/ prohibit the start of the engine.
This system prevents the engine from
Engine ECU
MUT
Function
USRSMANUAL_22302.DOC
Model:IMB223-02

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   Summary of Contents for Mitsubishi Electric IMB223-02

  • Page 1 Immobilizer ECU User's Manual USRSMANUAL_22302.DOC Model:IMB223-02 1. General The immobilizer system is an electronic anti-theft system. This system prevents the engine from unauthorized starting such as hot-wiring, etc. The engine would not start until the ID code registered in the ignition key coincides with the code registered in the immobilizer ECU on the vehicle.
  • Page 2: System Operation

    USRSMANUAL_22302.DOC Model:IMB223-02 2. System operation (1) Operation start When the ignition key is turned to the ON position, battery power is supplied to the immobilizer ECU. And at this time, the engine ECU sends request code to the immobilizer ECU.

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