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Vehicle fault determination device

  • US 9,269,204 B2
  • Filed: 01/16/2014
  • Issued: 02/23/2016
  • Est. Priority Date: 03/21/2013
  • Status: Active Grant
First Claim
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1. A vehicle fault determination device comprising:

  • a relay connected to a power source;

    a vehicle configuration circuit supplied with power from the power source via the relay; and

    a control section adapted to determine whether the relay is faulty while controlling the relay and the vehicle configuration circuit;

    wherein the control section includes;

    a first port adapted to output a control signal to a coil portion of the relay; and

    a second port connected to a contact portion of the relay via the vehicle configuration circuit; and

    the second port serves as an input port when the fault determination is made and as an operation port when the vehicle configuration circuit is controlled;

    wherein the control section outputs a given test signal to the first port during the fault determination; and

    the control section determines whether the relay is faulty based on the signal input to the second port.

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