i suspect that it is the circuit breaker - it will not look like a circuit breaker in a house, it may be inline or most likely hiding around teh fuse box someplace.

A circuit breaker is a protective device designed to open the circuit when the circuit load is greater than the rating of the breaker. If there is a short or any other type of overload in the circuit the excess current draw will open the circuit breaker, the breaker will automatically reset and if the problem is still present will open again. The breaker will continue this cycle until the problem is found and corrected, or due to the excessive cycling the breaker will become damaged and replacement of the breaker is then necessary. Never replace a circuit breaker with one of a higher (amps) rating! Doing this will also cause a lost of circuit protection and again a vehicle fire could be the result!