GM Service Manual Online
For 1990-2009 cars only

Circuit Description

The Driver Memory Wake-Up Switch is located at the left front door. The memory wake-up switch is pressed, the DDM inputs voltage and the DDSA receives voltage signal. Refer to Memory Function for the detailed information on memory function operation.

DTC Descriptors

This diagnostic procedure supports the following DTCs:

    • DTC B2755 Left Front Memory 1 Select Switch Circuit
    • DTC B2760 Left Front Memory 2 Select Switch Circuit
    • DTC B2765 Driver Memory Setup Switch Circuit Failure

Conditions for Setting the DTC

    • ACCY
    • RUN
    • CRANK REQUEST

If the DDS detects the memory switch is ON for more than 30 continuous seconds, the appropriate DTC will be set.

Action Taken When the DTC Sets

Ignore this operation, unless the switch is disconnected or the power mode is from OFF to RUN.

Conditions for Clearing the DTC

    • The current DTC will clear if the failure signal is no longer present.
    • Use the scan tool.

Diagnostic Aids

    • The Intermittent Sticking Switch may result in DTC set. Refer to Testing for Intermittent Conditions and Poor Connections.
    • Refer to Schematic and Routing Diagrams .