DTC B1027 Hummer
Trunk Key Cylinder Switch Signal Error
Trunk Key Cylinder Switch Signal Error
Description
A ON OFF malfunction of the trunk key cylinder switch is detected. NOTE: Check the ON OFF information of the Trunk Key Cylinder Switch (UNLOCK) in the DATA LIST information.
Cause and Solution
Open circuit between the MICU and trunk key cylinder switch
Faulty trunk key cylinder switch
Faulty MICU
Video Guide
Diagnostic Info
- DTC Code: B1027
- Brand: Hummer