B100C:12
DTC B100C:12 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]
WARNING:
- If this DTC is detected, the system will enter the fail-safe function to ensure safety. If the vehicle is left as it is for a specified time limit or more, or the ignition is operated a specified number of times or more while the fail-safe function is operating, the ignition will remain stuck in off and it is possible that the engine cannot be started. Therefore, perform the malfunction diagnosis while the engine can be started. In addition, after having performed the malfunction diagnosis, verify that this DTC is not detected with the steering wheel locked. If the DTC is not detected, the system returns to normal from the fail-safe function.
NOTE:
- When the system enters the fail-safe function, the keyless warning light and the push button start indicator light illuminate as follows:
- When the clutch pedal (MTX) or the brake pedal (ATX) is depressed while the ignition is switched off, both lights illuminate (red).
- When the ignition is switched to ACC or ON, both lights illuminate (red) constantly.
Detection Condition/Possible Cause:
Diagnostic Procedure
