| 摘要 |
PROBLEM TO BE SOLVED: To provide a failure determination device for a telltale light source, easily determining failure of a light source at an appropriate timing. SOLUTION: A computer 11 of an engine ECU 10 outputs a turn-on request signal and a turn-off request signal for a glow telltale 100 to a computer 21 of a meter ECU 20. The computer 21 of the meter ECU 20 detects a turn on and off state of an LED 120 based on consumption voltage of the LED 120 of the glow telltale 100 and outputs the detection result to the computer 11 of the engine ECU 10. The computer 11 of the engine ECU 10 determines a failure of the LED 120, based on the turn-on and turn-off state indicated by the turn-on and turn-off request signal and the turn-on and turn-off state indicated by the detection result. COPYRIGHT: (C)2010,JPO&INPIT
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