WINTER Indicator Lamp

WINTER indicator lamp

WINTER:

Cars Without Sentronic:

Schematic:

To make starting easier on slippery road surfaces, the TCM transmission is equipped with a winter mode, i.e. the car starts in 3rd gear when the winter button (W) on the selector lever is pressed.

The lamp is supplied with power in the main instrument unit and grounded internally by the main instrument. TCM continuously sends bus information WINTER ON, unit ON/OFF.

On receiving WINTER ON, the control module grounds the output of the lamp which then lights up.

The indicator lamp goes out under the following conditions:
- When the Winter button is pressed again.
- When the transmission is in Limp-home mode.
- If the ignition is turned off and then on again.
- The oil temperature in the gearbox is above 140 Degree C.
- Kick-down is activated (returns to WINTER when kick-down is disengaged)
- Gear position L or M is selected

Diagnostics
The function has no diagnostics.