DTC B27A1: Open in Driver Side Electrical Antenna Circuit: Description
WARNING: This page is about a different variant/trim than selected.
The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly LH (driver side electrical key antenna) at intervals of 250 ms. For the front door outside handle assembly LH (driver side electrical key antenna) to detect when the electrical key transmitter sub-assembly is brought close to the vehicle, a signal requesting a response from the electrical key transmitter sub-assembly is transmitted within approximately 1 m (3.28 ft.) of the driver side door at intervals of 250 ms. DTC B27A1 is stored by the certification ECU (smart key ECU assembly) when an open circuit is detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly LH (driver side electrical key antenna) (between terminals CLG1 and ANT1, or terminals CG1B and ANT2).
| DTC Code |
DTC Detection Condition |
Trouble Area |
DTC Output Confirmation Operation |
| B27A1 |
An open circuit is detected in the circuit between the certification ECU (smart key ECU assembly) and front door outside handle assembly LH (CLG1 - ANT1, CG1B - ANT2) (This is detected by the malfunction detection circuit in the certification ECU (smart key ECU assembly) (1 trip detection logic*). |
- Harness or connector
- Front door outside handle assembly LH
- Certification ECU (smart key ECU assembly)
|
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 driver side door |
- |
RELATED DATA LIST AND ACTIVE TEST
| DTC Code |
Data List and Active Test |
| B27A1 |
Key diagnostic mode can be used to perform troubleshooting |