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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 12-14-2008, 01:17 PM   #1 (permalink)
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TP switch/sensor input values?

So does anyone know what the values coming from the Brown/Blue and Brown/Black wires coming from the computer should be? I know the solid Brown is ground.
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Old 12-14-2008, 02:38 PM   #2 (permalink)
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I think I found it. Looks like 5 volts at the outer terminals and the center is ground. Let you know how it turns out.
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Old 12-14-2008, 02:46 PM   #3 (permalink)
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Old 12-24-2008, 04:08 PM   #4 (permalink)
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I have checked the values and found the following. The outside terminals each read battery voltage while the center reads 22 ohms. Ordinarily I would just run an auxilliary ground when I find a high resistance like this but the high voltage at the end terminals has me wondering if there is an error in the diagram? I know if the wrong wire from the computer is grounded it can ruin the ECU. Any suggestions? I am considering checking the wire at the ECU connector to check the continuity but it is just way too cold out there.
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