TCS OFF/ESP OFF indicator lamp: Diagnostics
In the event of a system fault that affects the ABS, the ABS, foot brake and central warning lamps will light up.
If the bus message from the TC/ABS is missing for 2 seconds, the TCS OFF and ABS lamps will come on. If the bus message is missing for a further 8 seconds, the central warning and foot brake warning lamps will also light up.