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International Automotive Technicians Network
Re: no speedo at IPC but reads mph on scanner
Posted to Technical Discussion Forum on 7/20/2012

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Looks like the speedo head is the culprit. I have only 8 volts at pin W22 dark green wire at ecm. If I raise the front wheels and put it in drive the ecm pulls the 8 volts to ground perfectly. Using ... Login to read more.