How do I get rid if the ABS fault light in dash of a VW polo 2003 any suggestions short replacing expensive pump unit?

1. Check the ABS sensors. The ABS sensors are located on each wheel and are responsible for detecting wheel speed. If a sensor is dirty, damaged, or not properly connected, it can cause the ABS light to come on. Check the sensors for any visible damage or dirt and clean them if necessary. Make sure the sensors are properly connected to the ABS control unit.

2. Check the ABS relay. The ABS relay is located in the engine compartment and is responsible for supplying power to the ABS system. If the relay is faulty, it can cause the ABS light to come on. Check the relay for any visible damage or corrosion and replace it if necessary.

3. Check the ABS fuse. The ABS fuse is located in the fuse box and is responsible for providing power to the ABS system. If the fuse is blown, it can cause the ABS light to come on. Check the fuse for any visible damage or corrosion and replace it if necessary.

4. Check the ABS control unit. The ABS control unit is located in the engine compartment and is responsible for controlling the ABS system. If the control unit is faulty, it can cause the ABS light to come on. Have the control unit checked by a qualified mechanic if you suspect it may be faulty.

If you have tried all of the above and the ABS light is still on, you may need to have the ABS pump unit replaced. This is a more expensive repair, but it is sometimes necessary to get the ABS system working properly.