B1027 ACURA – Trunk Key Cylinder Switch Signal Error

B1027 ACURA Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B1027 ACURA 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)

B1027 ACURA 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.