190 2.3 16V- Problems is ABS light does not light when ignition turned on. Can someone advise the logic for the operation of this light. It appears to have three connections, one from electrical centre (term 15) which I assume activates the light when ignition turned on but how does it de-activate supply when engine still running?. Another from term 7 on ABS pump connector which I assume provides signal indicating fault condition with system and another connection from light to ABS control unit (term 29) which again, I assume provides signal confirming that light is activated. At present I have no signal from term 7 on ABS pump to light (engine not running), or is it that the ABS control unit provides all the light activation signals only when engine running or vehicle moving
Any help appreciated.