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I received my repaired ECM back from Autocomputer Specialist with a note not to hook it back up until a find the short to ground. I started looking at known problem areas. Once I got around to testing the DTC P0382: INTAKE AIR HEATER RELAY #2 CONTROL CIRCUIT I hit a snag. From instruction item 3 " If resistance is 1000 ohms or greater, go to next step. If resistance is less than 1000 ohms, repair short to ground in Orange/Black wire between ECM and intake air heater relay No. 2." On my sweep Ohm meter set to the 10X scale I am reading 17 or 170 ohms. Without tearing all the wrapping off the wiring harness and looking for a short to ground does anyone have any suggestions on what to look for. I also checked the INTAKE AIR HEATER RELAY #1 CONTROL CIRCUIT connector at the ECM plug, following the same test and got the same reading on my Ohm meter. Any suggestions on a way to clean the holes/contacts at the ECM plug. I also checked and cleaned a lot of grounding locations.
