Thought someone might be able to benefit from this:

1) Green/Black - Speed Input - Pin ?
2) Green/Blue - Temperature Input - Pin TF
3) Blank
4) Violet/Green - Cold Start - 87V
5) Black/Red/Violet - Heated O2 Sensor - Pin 87H
6) Black/White - Kickdown - Pin 87K
7) Black/Red/White - Fuel Pumps - Pin 87
8) Red - Hot All Times +12 - Pin 30
9) Pink/Black - Ignition Switch - Pin 15
10) Green/Yellow - Tachometer Input - Pin TD
11) Brown - Ground - Pin 31
12) Violet/White - Starter Lockout Input - Pin ?

This pin out came from the w126 ETM for 1986+ Cars but should work on most cars with a fuel pump relay (not MAS).

If you are re-wiring one of these be sure to mind the 87 pin connectors as 87 and 87 do not carry the same current. I.E Pin 87H will not be able to engage something that should be connected to Pin 87

Hope this helps someone.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

Thanks very informative.
how is the rev limiter activated here.
mak

__________________
mark

If you look at this diagram..the rev limiter appears to the one of the inputs to the coil side of the relay. The rpm input gets data from the EZL, which also feeds the tach, etc.

I believe the RPM signal voltage range is 6-12 volts. So in theory if you were to modify the signal so that it doesnt peak at 12...you could rev higher as the limiter wont cut the fuel pumps....

• 

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

Looks like that 560 is coming along.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

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