| 摘要 |
PROBLEM TO BE SOLVED: To accurately store an operation prohibiting situation of an air bag until the inflation of the air bag is requested in an air bag manual cutoff system capable of changing the operation prohibiting situation of the air bag manually. SOLUTION: In this air bag manual cutoff system comprising a multi-stage switch 41 for changing over the safety device of an air bag between operable and inoperable modes, when the multi-stage switch 41 is operated to the operation prohibiting position of a specified safety device, the outputting of an ignition signal to a squib 32 corresponding to the safety device is prohibited. In this case, a CPU 36 detects the situation of the multi-stage switch 41 based on a potential between a common terminal 41 and resistors 46-i (i=1 to N) and the connection parts of the resistor 48. The detected situation of the multi- stage switch 41 is stored in an IC memory 38. |
