GM Service Manual Online
For 1990-2009 cars only

The steering wheel controls (SWC) consist of the RH side steering wheel controls and the LH side steering wheel controls. These switches are wired through the inflatable restraint steering wheel module coil to the dash integration module (DIM).

    • The RH side steering wheel control consists of the audio system VOL and SEL buttons.
    • The LH side steering wheel control consists of one of the following:
       - The climate control system TEMP and FAN buttons (on vehicles without a cellular telephone).
       - The SEND and END buttons (on vehicles with a cellular telephone).