DTC B27A2: Open in Front Passenger Side Electrical Antenna Circuit [08/2015 - 08/2019]: Description

The certification ECU generates a request signal and transmits the signal to the front door outside handle assembly RH (front passenger side electrical key antenna) at intervals of 250 ms. For the front door outside handle assembly RH (front passenger side electrical key antenna) to detect when the key is brought close to the vehicle, a signal requesting a response from the key is transmitted within approximately 1.0 m (3.28 ft.) of the front passenger side door at intervals of 250 ms. DTC B27A2 is stored by the certification ECU when an open circuit is detected between the certification ECU and front door outside handle assembly RH (front passenger side electrical key antenna) (between terminals CLG2 and ANT1, or terminals CG2B and ANT2).

DTC Code	DTC Detection Condition	Trouble Area	DTC Output Confirmation Operation
B27A2	An open circuit is detected in the circuit between the certification ECU and front door outside handle assembly RH (CLG2 - ANT1, CG2B - ANT2) (1 trip detection logic*).	Harness or connector Front door outside handle assembly RH Certification ECU	Any time

*: Only output while a malfunction is present.

VEHICLE CONDITION AND FAIL-SAFE OPERATION WHEN MALFUNCTION DETECTED

Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
Entry lock/unlock operation cannot be performed for front passenger side door	-

RELATED DATA LIST AND ACTIVE TEST

DTC Code	Data List and Active Test
B27A2	Key diagnostic mode can be used to perform troubleshooting