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Diagnostic Method

Judge as OK and clear the NG if any of the followings is established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
(1) Main CPU calculation result The result and expected value match
(2) Communication between output ICs Possible to communicate
(3) Step of calculation Expected step of calculation
(4)-1 Motor relay cut-off signal from observation IC ON
(4)-2 As defined by Instruction error Detect
or  
Instruction error Detect
(5) Driver IC bus signal Did not change
(6) Written data in the CAN register Read data

Time Needed for Diagnosis: 

  1. 2 time(s)
  2. 512 ms
  3. 504 ms
  4. 48 ms
  5. 2500 ms
  6. Less than 1 second

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.