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How to repair a remote controlled car toy? I

I don't want to toss it but if it can't be repaired how could I use the parts that come with it.  I put new batteries in it and cleaned the connections but it doesn't make a sound.  The motor probably doesn't work but how can I test for that?

Re-design7 years ago
connect a battery directly to the power terminals of the battery.  If you get movement then the motor is probably still good.

THe switch could be bad or the transmitter or the receiver.  Or a wire between any of these. so there are lots of ways that it might be faulty but most of them are checkable.