Code No.B1A10 Keyless/KOS key 1 low battery
Code No.B1A11 Keyless/KOS key 2 low battery
Code No.B1A12 Keyless/KOS key 3 low battery
Code No.B1A13 Keyless/KOS key 4 low battery



caution When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION


If KOS-ECU receives the keyless operation key low battery voltage signal, KOS-ECU sets the diagnosis code No. B1A10, B1A11, B1A12, or B1A13.

JUDGMENT CRITERIA




PROBABLE CAUSES




DIAGNOSTIC PROCEDURE


1.Replace the battery in the keyless operation key and recheck the diagnosis code.
2.Replace the keyless operation key and recheck the diagnosis code.