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Lancer ES Sportback
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Repair and Diagnosis
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Body & Frame
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Door Locks
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Keyless Operation System (Kos) - With Diagnostics - Lancer
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Diagnosis
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Diagnostic Trouble Code Procedures
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DTC B2400: KOS key registration fail
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Notes
DTC B2400: KOS key registration fail: Notes
CAUTION:
If the DTC B2400 is set, diagnose the CAN bus lines.
When replacing the ECU, always check that the communication circuit is normal.
Fig 1: Receiver Antenna Module And KOS-ECU - Circuit Diagram
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.