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I am working on a 2005 infinity fx35. It came in because the wipers didn’t work and a/c would not work found someone hot wired the compressor so it would work. We removed the hot wire put it back to factory. So we started checking the wipers the motor is good and could communicate with pcm, bcm but not the ipdm. Checked ohms resistance at the data link we have 113.7 ohms but at the connector going into the ipdm there is not a ohms reading at all. The tech ran two wires from the data link to the ipdm. The wipers started working but the car don’t start no engine light on the dashboard. Told him to remove the wires so he did now there isn’t and communication with the bcm, pcm, ipdm. Could he have damaged the pcm or both. Also any ideas of what or where to check the can lines for a break.
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