| 摘要 |
PROBLEM TO BE SOLVED: To provide a steering switch input detection circuit in which the number of electric wires is suppressed and which therefore allows time required for wiring work to be suppressed.SOLUTION: The steering switch input detection circuit includes: a shield cable 20; a steering switch detection part 61 including a plurality of steering switches SW1, SW2, SW3, and SW4, and a plurality of first resistors R1, R2, R3 and R4; a horn switch detection part 62 in which a horn switch SWh and a second resistor Rh are serially connected together; and a control device 10 (a switch discrimination part) for discriminating a switch used for input, from among the plurality of steering switches and the horn switch. The steering switch detection part 61 and the horn switch detection part 62 are parallel connected between one line of the shield cable and common potential part. The plurality of first resistor and the second resistor each have such a resistance value that a current flowing therein is lower than an igniting current. |
