2000 E46 318 - Rev counter wiring

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  1. 2000 E46 318 - Rev counter wiring 
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    Hi, could anyone tell me where does the E46 pick up the revcounter signal? I know on the E46 everything runs on a bus, so I suspect the revcounter is digital, but it must still get some analogue signal from the engine to be able to indicate the engine revolutions? Does it come from the crank or cam sensor?
     
     

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    The crank sensor is the main source of the engine speed signal, and it is then passed over the CAN bus to any module that needs to know.
     
     

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    Thanks for responding. I am trying to find out where to connect an aftermarket revcounter to the existing system, and I suspect this will be the place to connect to. I will keep you posted if it works or not, or if I need a new computer box if I blow it up by mistake........... LOL
     
     

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    Have a look in the wiring diagrams, you're looking for a signal or wire called TD, which is the code for engine speed.

    You might be lucky and find that there is an analogue pulse signal still being sent out to other modules like the EWS, windscreen wiper controller and radio.
     
     

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    Will do, thanks for the help.
     
     

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