Start the car and make sure the ABS warning light works. If the light is on at the switch, the switch would have to be hooked up. And in case you are not clear on this, if the switch is lit the traction control is off. By default the switch is always unlit meaning the system is active.
Since traction control and ABS are the same system, usually a traction off at startup means both are out. In fact its probably always the case.
So make sure the ABS light even works. If not, then you have an ABS pump/relay/fuse issues. Which is probably the case.