Bosch Throttle potentiometer wiring diag?

[feef]

Has anyone got a wiring diagram for the Bosch throttle potentiometer as fitted to the Boxster and other models? (Bosch part no : 0 280 752 010)

6 wires out:
brown
grey
yellow
white
green
pink

I'm expecting one pair will be a 0 to +5v and another pair a 0 to -5v with the final pair a power or similar

It's not going back in a porsche, I'm working on a little Drive-by-wire project (and yes I'm well aware of safety issues and whatnot, this is just to help me get a test rig set up), and am trying to work with the bits I have at my disposal

If anyone can go a step further and identify any specific signals that are sent, then that'd save me hooking up a scope and reverse engineering it

Tia

[Steve H]

Generally a six wire motorised body would have two wires for the motor (spring loaded return), this would usually be a permanent 12v and a switched earth from the ecu. The remaining 4 would be a 5v & 0v for the sensors and two sensor outputs.

The outputs would most commonly either add up to 5v with one starting high and dropping and vice versa (4.5/0.5, 4/1, 3.6/1.4 etc) or they would both start low and increase but one would always be half the voltage of the other one (0.3/0.6, 1.2/2.4 etc).

I can't tell you anything specific for that part number you've got but it should be pretty easy to sort out with a meter and a battery!

HTH

Steve H

[ajondyh]

I see this was 6 years ago but I wonder if the OP found the wiring pinouts? I'm trying to tap into the throttle for the datalogger.

[feef]

ajondyh said:

I see this was 6 years ago but I wonder if the OP found the wiring pinouts? I'm trying to tap into the throttle for the datalogger.

no, I never did, and gave up on the project.. I can't even remember now exactly what I was trying to do

[Pope]

Too late for the OP but is this any help now?

[AW10]

ajondyh said:

I see this was 6 years ago but I wonder if the OP found the wiring pinouts? I'm trying to tap into the throttle for the datalogger.

Might be easier to get throttle opening from the OBD datastream as well as loads of other stuff?