Tacoma_TDI
Well-known member
I'm looking for information on the function of each cruise control switch position on the VW ALH cruise control stalk. I'm going to use an Arduino to act as an interface between the Toyota cruise control stalk (two wire, resistor based switch) and the VW stalk (6 wire with internal switches). So far all I've found is a thread that states each pin on the ECU pertains to a specific function (this cannot be the case because three internal switches are connected and move together, some of which are connected in multiple switch positions), and another thread (see post #5) that tells me what pins are active in positions 3, 2, 0, and 1. Does anyone know the function of each switch position? Any help would be greatly appreciated!
edit: for 121 pin ECU
edit: for 121 pin ECU
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