Went camping this weekend, and when we went to start the car to leave, the 1 year old battery was dead.
The ONLY thing different was that the t-case was left in p/t 4wd. Is there a relay or electric clutch that was energized even with the engine off?
The battery recharged just fine on the drive home, and since being in 2wd, has not drained since.
The only thing I can think is the switch or motor that engages the 4wd is draining the battery by creating a draw. The switch or motor is constantly staying on when in 4wd. I would have the system check for an electrical short or open circuit.
Good Luck
No when vehicle is off only a few things can drain the battery usually dome lights or headlights
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