ABS warning lamp

If a fault occurs on any of the TC/ABS control module inputs or outputs, or if the power supply (+15) is missing, the ABS, brakes and central warning lamps will go on in the main instrument unit. The lamp will go on when the ignition is turned on and go out again after 3-5 seconds if no fault is found. If a fault occurs when driving, the lamp will come on and the TCS and ABS functions will be disabled.

Fig 1: Identifying ABS Warning Lamp

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: ABS Warning Lamp - Circuit Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The TCS OFF lamp will be turned on at the same time as the ABS control module turns on the ABS, brakes and central warning lamps.

If the main instrument unit loses contact with the TC/ABS control module via the bus, the ABS, brakes, TCS OFF and central warning lamps will come on after 2 seconds.