Dynamic Stability Control (DSC) Switch
The Dynamic Stability Control (DSC) switch is a non latching switch installed in the floor console. Pressing the DSC switch connects an ignition power supply to the Anti-lock Brake System (ABS) control module. With the first press of the DSC switch, the ABS control module disables the DSC functions. When the DSC switch is pressed again, the ABS control module re-enables the DSC functions. The DSC switch must be pressed for a minimum of 0.3 second for the ABS control module to react. The DSC function is re-enabled at the beginning of each ignition cycle. To confirm that the DSC function is selected off, the amber colored DSC 'OFF' warning indicator in the Instrument Cluster (IC) is continuously illuminated. A message is also displayed in the message center to confirm that DSC is selected off. When the DSC function is selected on again, the DSC 'OFF' warning indicator and message go off.
Although Land Rover recommend that DSC is selected on for all normal driving conditions, it may be beneficial to deselect DSC in order to maximize traction under the following conditions:
- To rock the vehicle out of a hollow or a soft surface
- When driving on loose surfaces or with snow chains installed
- When driving in deep sand, snow or mud
- When driving on tracks with deep longitudinal ruts.
To prevent mis-use of, or in the event of a broken DSC switch, a Diagnostic Trouble Code (DTC) is stored in the ABS control module memory if the input from the DSC switch is held high for more than 1 minute.