So, I recently had a electric fan installed on my 06 TJ when I was out of town. the guy who did it installed a new temperature probe in my thermostat housing to hook a wire to so that it could control when my fan cycles on and off. no problems with that, but it left my factory wiring plug dangling and was giving me a code, I was poking around trying to see how I could get them both to work together so I wouldn't have to have a engine code up all of the time. It was late and I was tired (should have just went to bed so id be rested and not apt to do incredibly dumb stuff like accidently put my ground clip to the positive on my battery) while doing this I inadvertently put 12 volts into the ground pin on the plug and now all of the sensors in my engine (MAP, throttle position, intake air, ambient air) are all sending low voltage codes, and my engine will crank but not turn over.
these are the steps I've taken so far to try and diagnose;
-gone through my PCM plugs and checked all the wires in the harness for function, all worked.
-disconnected the battery and let it sit to try and reset the PCM (4hrs)
-I've reset the PCM
-I've taken the PCM out of the vehicle and opened it to inspect the PCB traces and various components for damage (everything LOOKED normal and undamaged)
-check all fuses in glovebox and next to battery
wondering where I should go from here, new sensors? new PCM? I'm not extremely comfortable with my abilities when it comes to computers in the vehicle, but I know enough to make basic diagnoses, any help or suggestions would be appreciated, thanks fellas
these are the steps I've taken so far to try and diagnose;
-gone through my PCM plugs and checked all the wires in the harness for function, all worked.
-disconnected the battery and let it sit to try and reset the PCM (4hrs)
-I've reset the PCM
-I've taken the PCM out of the vehicle and opened it to inspect the PCB traces and various components for damage (everything LOOKED normal and undamaged)
-check all fuses in glovebox and next to battery
wondering where I should go from here, new sensors? new PCM? I'm not extremely comfortable with my abilities when it comes to computers in the vehicle, but I know enough to make basic diagnoses, any help or suggestions would be appreciated, thanks fellas
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