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Home >> Mitsubishi >> 2005 >> Galant LS >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Chassis Electrical >> Ignition Switch >> General Description >> Operation >> Notes

Ignition Switch: General Description: Operation: Notes

  1. When the ignition switch is turned to "ON" position, the PCM sends a requirement for the encrypted code to the immobilizer-ECU (at this time, the engine is demobilized).
  2. When the immobilizer-ECU receives the requirement from the PCM, the immobilizer-ECU supplies power to the transponder inside the ignition key via the antenna. The energized transponder sends the encrypted code back to the immobilizer-ECU via the antenna.
  3. The immobilizer-ECU judges the encrypted code with its code logic in itself. If they are identical, the immobilizer-ECU sends the encrypted code to the PCM.
  4. If the PCM cannot receive the encrypted code, the engine will be immobilized.
    Fig 1: Identifying Ignition Key Ring Antennas Flow Chart
    G02380004Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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