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S500 SCU (seat control unit) wiring diagram/pinout

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Old Oct 14, 2023 | 11:06 AM
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S500
S500 SCU (seat control unit) wiring diagram/pinout
Hello all,

I came across a lovely S500 2003, loaded with a bit of options but also loaded with a bit of problems, which is quite normal given the cars age.
Spent the whole night on internet looking for SCU (seat control unit) wiring diagram/pinout but could not get anything useful.

The unit itself is following: Temic 7654 (220 820 12 85)

If anyone can provide wiring diagram/pinout of what each pin means on each connector it would be greatly appreciated.

Thank you.
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Old Oct 14, 2023 | 04:37 PM
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Do you mean the door control module (Dcm) which is the power seat switches on the door ? Door control modules are a high failure item and easiest to just swap with one from eBay
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Old Oct 14, 2023 | 05:06 PM
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Originally Posted by tusabes
Do you mean the door control module (Dcm) which is the power seat switches on the door ? Door control modules are a high failure item and easiest to just swap with one from eBay
Nope, the module that sits under the driver/passenger seat.
For DCM i got the wiring and pinout but it doesnt help me.
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