Trip Computer And Displaying/Erasing Text Messages

Fig 1: Steering Wheel Module, Central Electronic Module And Driver Information Module Communication Diagram

Courtesy of VOLVO CARS CORPORATION

The left-hand control stalk is used to control the trip computer and to display and erase text messages in the driver information module (DIM) (5/1).

The steering wheel module (SWM) (3/254) transmits data to the central electronic module (CEM) using LIN communication to indicate the selected function. The central electronic module (CEM) (4/56) forwards this data to the driver information module (DIM) via the CAN network.

The trip computer menu is controlled using the ring on the left-hand control stalk. Turn the ring forwards or backwards to scroll through the menu one step at a time. Some menu selections, such as average speed and fuel consumption, can be reset using the RESET button.

Error messages displayed in the driver information module (DIM) display are erased using the READ button.