B1027 HONDA - Trunk Key Cylinder Switch Signal Error
Repair Importance Level:
Repair Difficulty Level:
Possible causes
- Faulty Trunk Key Cylinder Switch
- Trunk Key Cylinder Switch harness is open or shorted
- Trunk Key Cylinder Switch circuit poor electrical connection
- Faulty Multiplex Control Unit Module (MICU)
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1027 Honda Description
The Multiplex Control Unit Module (MICU) monitors the Trunk Key Cylinder Switch. The MICU sets the OBDII code when the Trunk Key Cylinder Switch is not to factory specifications.