Circuit breakers are used to protect vehicle electrical system components such as headlights and power window motors, door lock actuators, etc.
On some models, after operation, the breakers return to their original state automatically. If the overload that caused the tripping of the breaker was not episodic, the condition of the corresponding circuit should be checked without delay. After the fault has been cleared, the circuit breaker will return to normal operation. Sometimes the interrupter must be reset manually after the cause of the overload has been eliminated.