1992 SC300 Wireless Door Lock Control ECU Terminal Diagram

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Dec 29, 2008 | 04:18 PM

danieljava

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From: California

1992 SC300 Wireless Door Lock Control ECU Terminal Diagram

Hello all,

I'm trying to troubleshoot the keyless entry on my 1992 SC300. I have replaced the ECU but still cannot get the unit to response to reprogramming the key.

Does anyone have the voltage values for the ECU terminals for the 1992 SC300? I have the 1996 diagram but it is different from the 1992. I suspect a wiring problem.

Thanks in advance

Dec 29, 2008 | 09:03 PM

SAR41WY

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From: Wyoming

See if this helps.

92 SC300 EWD Doot Lock Control.pdf

Dec 29, 2008 | 09:05 PM

SAR41WY

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From: Wyoming

Couldn't figure out how to attach both on one reply, so here's the other one.

92 SC300 EWD Wireless Door Remote Control.pdf

Dec 29, 2008 | 09:16 PM

SAR41WY

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From: Wyoming

And this one.

92 SC300 Wireless Service Info.pdf

Dec 29, 2008 | 10:53 PM

danieljava

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From: California

Wow, that was great. Thank you.

Dec 30, 2008 | 10:58 AM

danieljava

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From: California

SAR41WY,

Do you also have the programming instruction for the 1992 model?

Thanks.

Oct 16, 2013 | 08:27 AM

Cleanshots

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From: NorCal

Quote:

Originally Posted by SAR41WY

See if this helps.

Attachment 136073

so what i did was i spliced into the lock wire since its a 12v pulse.. then i connected it to the piezo buzzer and grounded the other wire on the piezo and its in my driver fender.. so as long as i hit the button and hear one beep then its locked, if i click it and i hear nothing then its unlocked. but thats just me as long as i get one beep to confirm i locked my car thats good enough for me.. i might be converting to full keyless 2012 style soon no keys to open or start the car..