General Information - Multi-function Steering Wheel

General Information







The multi-function steering wheel makes it possible to operate the most important functions of the radio and the cruise control from the steering wheel.

The multi-function steering wheel includes the following electronic components:
- The operating unit in the steering wheel with two key pads. Key pads with integrated electronics are mounted on the left and right sides of the steering wheel.
- Multi-function steering wheel control module.

Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the applicable standard or optional radio system. Always read the vehicle/radio owner's manual and review all radio, tape player, CD changer and cruise control functions as they pertain to the multi-function steering wheel.

The multi-function steering wheel control module has On Board Diagnostic (OBD) capabilities.

If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory together with an indication of malfunction type. A maximum of 4 DTCs can be stored simultaneously.

Sporadic malfunctions (indicated in the readout by "SP") are automatically cancelled if not repeated in the next 50 engine starts.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAG 1551/1552 Scan Tool (ST) or VAS 5051 Vehicle Diagnostic Testing and Information System.

NOTE: The following description relates only to the VAG 1551 Scan Tool.