Hi Just an FYI for everyone. I had my 4 wheel drive light come on and it turned out to be the brake pads were thin. They were not on the scrapers yet but the light came on in the middle of a race. I did not lose the front wheel drive. Next day was going over the car. Had better pads so pulled some fluid out new pads all the way around. Took it out light was still on till I did some high speed braking. To heat the pads up. Stop to let them cool. Light has never came on again. Also bought a second car (for Back up) roll over total. Just really needs a cage which I do anyway. 21 R live had the 4drive light on and the shock light was on. Just took it out and ran it hard to see if the motor was OK. Did a couple a hard stops and both lights went out and its all good. Best of luck.
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