Steering Wheel Buttons

Fig 1: Identifying Steering Wheel Buttons

Courtesy of VOLVO CARS CORPORATION

The steering wheel buttons control functions and menu selection for:

• traffic information (RTI) (option)
• audio (option)
• carphone (option)
• bluetooth (option)
• cruise control (option).

The signals from the steering wheel switch left (SWSL) and steering wheel switch right (SWSR) is transmitted via LIN communication.

The steering wheel buttons are connected to the steering wheel module (SWM) via contact reel in the steering wheel hub.

There are diagnostics for the steering wheel buttons.