No need... I have moved them here!!Thanks Mr Wolf. Should I do so in this Electronic Projects section or in the Automotive Electronics area?
The left input is the momentary low signal from the ECU. That is what the Vecu source (round circle) on the left is simulating..............................
The blk/wht wire at pin 6 (rear of meter/cluster) is momentarily earthed by the ABS ECU. Is that what your diagram is showing at the left side?
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You'll have do decide what's the easiest way, as determined by the required parts for each approach...................
So John or crutschow, precisely what components do I need to solve this please? And what is the easiest way?
Your original description said "Basically the indicator LED for the ABS system in the meter unit is connected to the positive rail of the battery (12v). In order to make it illuminate and signal the rider, the ABS ECU momentarily drops the blk/wht wire to almost ground (almost 0v ) which lights the indicator and passes information about the state of the brake system to the rider."I had a good look at the diagram which is in the link in post 7 and have two questions. Firstly some info: the trigger pulse starts lo, goes hi then returns to lo. This is the opposite of what's shown at the left of the 555 timer diagram. Will it work if wired as shown?
Secondly, the 2 capacitors I was given are very different in size. Is the larger one a C or C' as shown in the diagram?
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