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; DTC B1A14: Keyless Key 5 Low Battery; DTC B1A15: Keyless Key 6 Low Battery; DTC B1A16: Keyless Key 7 Low Battery; DTC B1A17: Keyless Key 8 Low Battery: Diagnosis

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Replace the battery in the transmitter and recheck the diagnostic trouble code.
Replace the battery in the transmitter by which the DTC is set with a new one, and recheck if the DTC is set (Refer to TRANSMITTER ).
1. Replace the battery in the transmitter by which the DTC is set.
2. Use the transmitter to lock/unlock the doors.
3. Check if the DTC is set.
  Q: Is the DTC set?
  1. YES: Go to Step 2.
  2. NO: The diagnosis is complete (Discharged battery).
STEP 2. Replace the transmitter and recheck the diagnostic trouble code.
Replace the transmitter by which the DTC is set with a new one, register the key ID and the keyless entry secret code (Refer to ID CODES REGISTRATION PROCEDURE ), and recheck if the DTC is set.
1. Use the transmitter to lock/unlock the doors.
2. Check if the DTC is set.
  Q: Is the DTC set?
  1. YES: Replace WCM and register the ID codes (Refer to ID CODES REGISTRATION JUDGMENT TABLE ).
  2. NO: The diagnosis is complete.