TCS/ESP OFF Indicator Lamp

TCS/ESP OFF indicator lamp

OFF:

Schematic:

If any fault occurs in the TC/ABS or ESP system, the indicator lamp TCS/ESP OFF is lit via the Pbus. The warning lamp is also lit when the system is disconnected manually, which can be done at speeds lower than 60 km/h (37.5 mph) by pressing the TCS/ESP button. The system can be connected by pressing the TCS/ESP button at any speed, whereupon the TCS/ESP OFF indicator lamp goes off again.

When the ignition is turned on, the lamp comes on; if there is no fault, the lamp goes off again after 3-5 seconds.

Diagnostics
On a system fault which affects the ABS function, the ABS, drive brake and central warning lamps are lit.

If there is no bus message from TC/ABS or ESP within 2 seconds, TCS/ESP OFF and ABS lamps are lit. If there is no bus message for a further 8 seconds, the central warning lamp and faulty brake system lamp are also lit.