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Home >> Mitsubishi >> 2019 >> Eclipse Cross ES, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Keyless Entry System - Vehicles Without Keyless Operation System - (With Diagnostics) >> Keyless Entry System Diagnosis >> Diagnostic Trouble Code Procedures >> DTC B1A08: Keyless/F.A.S.T. Key 1 Fail; DTC B1A09 Keyless/F.A.S.T. Key 2 Fail; DTC B1A0A Keyless/F.A.S.T. Key 3 Fail; DTC B1A0B Keyless/F.A.S.T. Key 4 Fail; DTC B1A0C Keyless Key 5 Fail; DTC B1A0D Keyless Key 6 Fail; DTC B1A0E Keyless Key 7 Fail; DTC B1A0F Keyless Key 8 Fail >> Diagnostic Function
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Diagnostic Function

The door locking/unlocking code is automatically updated every time the doors are locked (rolling code). ETACS-ECU sets DTC No. B1A08, B1A09, B1A0A, B1A0B, B1A0C, B1A0D, B1A0E, or B1A0F when it receives wrong signal (rolling code out of synchronization) from the transmitter.

NOTE: When the system is corrected by the keyless entry operation, the diagnostic trouble code will be set as "historic fault."
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