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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Keyless Operation System (Kos) - With Diagnostics) >> Diagnosis < Kos-Ecu > >> 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 >> Diagnostic Function

Diagnostic Function

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

The mechanism which automatically changes a code for lock/unlock each time a lock operation is performed is referred to as a rolling code. If KOS-ECU receives wrong signal (out of synchronization of a rolling code) from the keyless operation key, KOS-ECU memorizes DTC B1A08, B1A09, B1A0A or B1A0B.

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