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View Full Version : 2.5t throttle body wiring Bosch 0 280 750 146 (part number 30711552)



surrey_100e
Thursday 22nd October 2015, 22:09
Hi,
Im trying to find out what the relevant wires are on the bosch throttle body found on the Focus ST/RS, and C30 2.5turbo models part number 30711552. So far ive found the following.

1 -
2 - ground
3 - +5v
4 -
5 -
6 -

There should be. Motor +, Motor -, Butterfly Sensor 1, Butterfly Sensor 2

If anyone can help that would be much appreciated.

Regards
Martin

http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_4003_zpsrmjawfkl.png (http://s1129.photobucket.com/user/surrey_100e/media/IMG_4003_zpsrmjawfkl.png.html)

http://i1129.photobucket.com/albums/m510/surrey_100e/throttle%20body_zps4if7vjdo.png (http://s1129.photobucket.com/user/surrey_100e/media/throttle%20body_zps4if7vjdo.png.html)

http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_1720_zpse15f95bb.jpg (http://s1129.photobucket.com/user/surrey_100e/media/IMG_1720_zpse15f95bb.jpg.html)

M-R-P
Thursday 22nd October 2015, 22:46
Well well well...

I was only asking about this project....


About 2 years ago lol.

No idea what wires you need mate but it's nice to see the project ongoing

jamesy12345
Thursday 22nd October 2015, 23:21
There's a marked up diagram although a different engine, may be some use

http://www.swededemon.com/images/SD7/shots/ecu/schema-1-signal.jpg

Dangerous Dave
Thursday 22nd October 2015, 23:32
Hope this helps...

Going on the second image with the ecu pins, info for a B5354T7 2009 model with a 30711552 throttle body:



TB Pin
Control module terminal
Signal type
Ignition on
Idle
Miscellaneous


1
A75
Throttle unit motor, control signal (-)
-
PWM signal U top=Ubat Pulse ratio 0-100%. The polarity of the control signal switches when the damper motor is to be deployed in the opposite direction.
The throttle motor is controlled using a PWM signal from the integrated power amplifier in the Engine Control Module (ECM) measured to terminal #A74


2
A14
Throttle position (TP), signal ground
U=Ulow
U=Ulow
-


3
A19
Throttle position (TP) sensor, power supply 5 V
U=5 V
-
-


4
A74
Throttle unit motor, control signal (+)
-
PWM signal U top=Ubat Pulse ratio 0-100%. The polarity of the control signal switches when the damper motor is to be deployed in the opposite direction.
The throttle motor is controlled using a PWM signal from the integrated power amplifier in the Engine Control Module (ECM) measured to terminal #A75


5
A88
Throttle position (TP) sensor circuit 2, signal
U≈4-0.4 V
U≈4-0.4 V
The voltage varies depending on the position of the throttle. U decreases with increasing throttle opening.


6
A65
Throttle position (TP) sensor circuit 1, signal
U≈ 0.4-4 V
U≈ 0.4-4 V
U varies depending on the position of the throttle. U increases with increased throttle opening.

surrey_100e
Friday 23rd October 2015, 09:07
That's a great help thanks very much, where did you find that information?
I know the project has taken longer than anticipated, things get in the way, and I don't know where the time goes, but it's all done, just finishing off a few bits on the engine loom. It's turns over and everything.
http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_1728_zps3b9306b9.jpg (http://s1129.photobucket.com/user/surrey_100e/media/IMG_1728_zps3b9306b9.jpg.html)
http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_1722_zps0360aa07.jpg (http://s1129.photobucket.com/user/surrey_100e/media/IMG_1722_zps0360aa07.jpg.html)
http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_1729_zps303f341f.jpg (http://s1129.photobucket.com/user/surrey_100e/media/IMG_1729_zps303f341f.jpg.html)
http://i1129.photobucket.com/albums/m510/surrey_100e/IMG_1726_zpsbbd1b319.jpg (http://s1129.photobucket.com/user/surrey_100e/media/IMG_1726_zpsbbd1b319.jpg.html)

Dangerous Dave
Friday 23rd October 2015, 09:46
That's a great help thanks very much, where did you find that information?

Info is from a Volvo tech document.

Lovely project, I like the attention to detail throughout the whole car, everything looks so clean :)