C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Where is Transmission ECU locate on W203 Sedan

Old Jan 3, 2005 | 11:40 AM
  #1  
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C230 K
Where is Transmission ECU locate on W203 Sedan

Hello

Anyone knows where is the Transmission ECU unit locate for W203 Sedan and the pin or wire colors for the vehicle speed sensor for the CANBUS are.

I purchased a Soundgate unit for the CANBUS adapter and need to connect my Eclipse NAV unit to work.

Please help.

Thank you.
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Old Jan 3, 2005 | 12:07 PM
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GL320CDI / C63 Edition 507 Coupe (EDP) / E63 S (on order) / G500 / Smart Brabus
I believe the transmission controller you are looking for is located under the floorplate on the right side. Lift the carpet out of the footwell area and unbolt the 3 nuts holding the floorplate down.

-s-
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Old Jan 4, 2005 | 11:43 AM
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Scorchie,

Thank you for the info.

And last night, I call up to one of my MBZ dealership who is a customer that we service and they faxed over all the info I needed as well.

However, I thank you very much for replying to my question.

Again, thank you

Below is the Trans-ECU wiring:
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Old Jan 4, 2005 | 04:08 PM
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And scorchie, once again you are correct! This is also the same location for the parametric module, distronic module, parktronic module. Applies to w209 and w203. Worldwide.
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Old Mar 25, 2005 | 04:28 PM
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This is for any future reference on the where about of the Transmission ECU for the W203 located - hope this helps solve the mystery and confusion !!
Attached Thumbnails Where is Transmission ECU locate on W203 Sedan-203mv303.jpg  
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Old Mar 27, 2005 | 05:39 PM
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Here are the wiring diagram pictures, hope this help others in the future for finding the Speed sensor on the W203.
Attached Images
File Type: bmp
27192101fa.bmp (380.7 KB, 9212 views)
File Type: bmp
c27192101fa.bmp (380.7 KB, 6152 views)
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Old Jul 4, 2005 | 07:02 PM
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'06 C350 4MATIC
Parametric

What is a parametric module>?
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Old Jul 4, 2005 | 07:04 PM
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The parametric module fits in the same area as the tranny control module but is not included in USA cars. It is also known as speed sensitive steering. IT requires addition of a harness, control module, and replacement of the entire steering rack.
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