Golf 4 1.6 Siemens ecu pin out

[andys1977]

Hi all, need some help with this ecu pin outs, original plug connector had wirring pulled out, got another connector and
sorted out, i cannot figure out where this wire cirlcled yellow connects to. someone else worked on this car before me and wirring was removed. car still starts though. thanks in advance.

vw golf 4 1.6 2004 model

ecu: 06A 906 033 AS
Benzin simos3.3a 4580
Siemens 5wp40151 03


549502 549503

[brobble]

Pin 121 has this color. But there are two cables with this color. Second at Pin 90. Both from throttle actuator. Maybe swapped?

At attachment wiring diagram. But it is in german, because I am a german. :-)

Greets MR...

[andys1977]

@ brobble Hi there, thank you kindly for your help, cannot understand your diagram though, english only.:crushed:
i have the correct throttle actuator wires, this single wire just cannot see where it connects to opened the whole wirring
harness but cannot see it cut from anywhere.

[brobble]

But the yellow circled pin is pin 121? So it is from throttle actuator. I took a look again. I found 4 cables with same color (purple/white), which are connected to ecu:

- 121, goes to throttle actuator Pin 5 (1.0 mm2)
- 90, goes to throttle actuator Pin 1 (0.35 mm2)
- 115, goes to egr valve Pin 5 (1.0 mm2)
- 80, goes to fuel pump relais, over connector box under the front wiper (T6/2) (0.35 mm2)

Good luck.

Greets MR...

[brobble]

The circled pin is 116. If this cable comes from EGR Valve, the cable must be pinned into 115. But in 115 you have blue/yellow cable. I cant find a blue/yellow cable, which directly goes to ecu.

Greets MR...

[andys1977]

@brobble, thanks for your help, sorry i did not mention that this is a import golf 4 (think from japan) the wirring loom in the import
version and our golf 4 in south africa is different. the original ecu plug was damaged and i used another one from our local golf 4 , thats
why the wire colour difference.

i need to know the pinout for the temperature switch and the map controlled thermostat please.

many thanks

550493