TV MAN
Junior Member
Join Date: Jan 2019
Location: Annapolis, IL
Mine has the module on the fuse box in front. I have found the twisted wires in the harness. I found a set of 4 twisted. Voltage wise, what should I see on the CAN V+? I am assuming ground is ground and I should be able to check it to the chassis. On the can data wires, should I be able to check at the PCM plug across those and read 120 ohms? Is that
disconnected or connected? I do have a PDF shop manual, but there are so many pages that I really don't even know where to start my search for tracking things out. I assume I can check the CAN V+ at each module? Do you by chance have any idea about what frequency the CAN C bus runs at?
From what I am reading here, it looks like this is pointing to a bad PCM or wiring. It seems there is quite some problems with that part. The HVAC is working (seemingly ok), gauges are working, trans responds to manual shifting or auto, although very abrupt. I did replace the wheel sensors on the left side, but didn't clear the codes. I just don't want to replace the
PCM only to have the exact same problems. I found the ground problems when cleaning and checking the connections. I am very inclined to run a new and specific ground from the battery to the engine block, then a good jumper from the engine to the strut tower.