GM Service Manual Online
For 1990-2009 cars only

DTC

Description

6

DTC 6 Theft Deterrent Relay Control Circuit Shorted

B2734

DTC B2734 Coded Key Controller Memory Failure

B2960

DTC B2960 Invalid Coded Key Present

B3031

DTC B3031 Key Decoder Device in Assem Learn Mode

B3055

DTC B3055 Key Not Present