My son had to jump start his 2006 Trailblazer in Grand Forks, ND... cold weather! Anyway, now he says none of the power equipment, radio, gauge lights, etc... will work. He checked the fuses and they were good, is there a main breaker or does anyone have any ideas?? Thanks.
I had a problem like yours and the dealer could not solve it. I went to a private electrician and took the main fuse box out and found that a soldering was broken. It soldered it again and the problem was gone. Check it and if this is also the solution for you, please publish it on FixYa.
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place the positive lead from the jump battery to the positive terminal of the dead battery. take the negative lead from the jump battery and place it on the engine or other metal point--- NOT TO THE NEGATIVE TERMINAL OF THE BATTERY-- If you do then you run a real risk of a power surge that will fry the ECM
However with a dead battery if the cells are failed then the power from the jump battery will probably feed the dead short in the dead battery and it may not work
Best have a load test done on the dead battery to see if it is faulty (cold weather) or just flat
As long as the smoke did not come from the wiring or the battery it's OK. Neg to neg connection is for safety reasons(To prevent short circuit) so if you did not see major sparking you should be allright. Rats can cause havoc in a car. They simply love the insulating plastic on electrical wiring. Look for chewed wiring and re-insulate. ps. Jump starting is not the cure all for a dead battery. Especially if the car's been standing for a long time.(long periods of inactivity are not kind to a vehicle) Cold weather makes things that much worse. Get the battery properly re-charged.
Welcome to the forum. Your question has to many variables. Cold weather out here in Cen Cal this time of year is mid 40s. Is the problem when the vehicle is cold as in ovrernight but starts ok when it is warm? Does it crank OK but seem like it's not getting fuel? If you hold the throttle slightly open, does it start OK?