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speedometer inop 900 1993

Art, just a brief question. You had mentioned substituting a signal in your response to my problem. Examining the schematic leads me to believe that I can
inject a 1 volt/1khz sine wave signal from the "black box" (contains the connector joining the sensor harness to the speedometer wiring) to the speedometer and perhaps see a response . I have a signal generator and there seems to be no issues with polarities. By the way, the wiring and connector rang out good. Any thoughts??






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New speedometer inop [900][1993]
posted by  Dom's940  on Sat Apr 13 16:28 CST 2019 >

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