multiplex wiring

just a quick question about new europeion vehicles which have multiplex wiring used in them. does anybody know of a programable reciver and transmiter which could be used to help overcome this problem

thankyou

source

You've got me confused...what is it you are trying to do??

Most vehicles can have systems installed to them, you may need to use resistors for different functions though.

Can you elaborate for us.

Nick

in some of the vehicles that we work on in thr uk we are finding that there are more vehicles coming out with multiplex wiring this is when data is sent through cables not just pos or neg or various voltages,

example: mitsubushi galant evo7 electric window lift

there are only five wires going to the switch assembly and it controls 4 windows and the window lock

i have also been told that if you take the moter out of the drivers door and put it in any other door it would only operate if it sees the multiplex pulse from the drivers door switch so all the moters see the pulse but only work when they get the right code

they say that it cuts down on unnessesery cables and weight

can anyone help

A multiplex system does not normally carry a code. The voltage on the wire is different for different functions.

You must ascertain the resister value to replicate the function. The circuit to be tested must be disconnected from the load when testing the resistor value.

Nick