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Old 12-05-2002, 08:09 AM   #1 (permalink)
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ATTS Voltage

Hey...

So there is a referential voltage wire that goes into the ecu in pin C1 to tell the ecu the ATTS is on.

What is the voltage of the line. Constant?
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Old 12-05-2002, 06:41 PM   #2 (permalink)
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I don't have the Helms with me, but I have no idea what you're talking about. Actually there are two wires that interface from the ECU to the ATTS control unit. Both a data stream wires, one is input and one is output.
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Old 12-05-2002, 06:50 PM   #3 (permalink)
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Voltage reference wire for PGM-FI sensors, runs from the ECM (C1) to the ATTS ecu (terminal 17). It is 5 V.
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