2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

which pin is the ignition switch on S4 ECU

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Old Oct 6, 2007 | 01:52 PM
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From: St. Thomas
which pin is the ignition switch on S4 ECU

i was looking at the pin outs......but i can't find the ignition switch pin....would it be the 3B "starter switch"
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Old Oct 6, 2007 | 02:33 PM
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the 3B is the starter switch for the ignition
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Old Oct 6, 2007 | 02:49 PM
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From: St. Thomas
so would the S4 3Bpin for the starter switch ....be the same as the 1C ignition switch pin on an S5 ECU???
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Old Oct 6, 2007 | 07:03 PM
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There is no "Ignition switch" pin.

Do you want switched power or a start signal? Two different things, two different pins.

Look at the wiring diagrams and ECU pin-outs in the FSM. All the info you need is there.
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Old Oct 6, 2007 | 07:05 PM
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From: St. Thomas
i was lookin at them....it is the same....i just needed a signal that was 12 volts at cranking and 0 at idle and ignition on

i figured it out after i posted this
it is the same
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