ABS Warning Lamp
ABS warning lamp
The ABS or TC/ABS control module monitors the operation of the ABS system and turns on the ABS warning lamp on the right-hand side of the main instrument unit if a fault occurs.
When the ABS lamp lights up, the anti-lock braking system is disabled and the brakes work just like a conventional braking system.
In cars with ABS (not connected to a bus), the lamp is powered by the main instrument unit and grounded via pin 10 of the main instrument unit (K20) by the TC/ABS control module.
In cars with TC/ABS (connected to the P-bus) the main instrument unit receives information over the bus to turn the lamp on/off.
The TC/ABS control module turns on the lamp when the ignition is turned on. It will go out within 3 seconds if there are no faults.
When the ABS warning lamp goes on, the central warning lamp will also go on.
Diagnostics
The function has no diagnostics.