FixVault
Home
›
Chevrolet
›
2018
›
Bolt EV Premier
›
Repair and Diagnosis
›
Body & Frame
›
Door Locks
›
Keyless Entry System And Remote Function
›
Diagnostic Information and Procedures
›
DTC B3121
›
Circuit/System Verification
Circuit/System Verification
Ignition - On/Vehicle - In Service Mode
Verify no other DTCs are set.
If other DTCs are set
Refer to:
Diagnostic Trouble Code (DTC) List - Vehicle
Go to next step: If no DTC is set
Refer to Circuit/System Testing.