LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Mitsubishi
>>
2013
>>
Lancer Evolution MR
>>
Repair and Diagnosis (Single Page)
>>
Body & Frame
>>
Door Locks
>>
Keyless Operation System (Kos) - Lancer Evolution
>>
Diagnosis
>>
Diagnostic Trouble Code Procedures
>>
DTC B1A10: Keyless/KOS Key 1 Low Battery; DTC B1A11: Keyless/KOS Key 2 Low Battery; DTC B1A12: Keyless/KOS Key 3 Low Battery; DTC B1A13: Keyless/KOS Key 4 Low Battery
>>
Probable Causes
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Probable Causes
Malfunction of the keyless operation key battery
Malfunction of the keyless operation key
Malfunction of KOS-ECU