Страница 1 мировой engineering стандарты общая спецификация

Page 333
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 333 of 336
E1.3.6 DTC Failure Sub Type (Symptom) Definition of Algorithm Based Failures.
Table E9: DTC Failure Sub Type Definition for Failure Category “5”
Failure
Type
Sub
Type
Algorithm Based Failures
Note: 
This category includes faults based on comparing two or more input parameters for
plausibility or comparing a single parameter to itself with respect to time.
Byte
Nibble 
Sub Type
(hex) (binary) 
Description
Definition
50
0000 reserved
51
0001 reserved
Defined in previous revision of this specification as
calculation failure
. Eliminated due to redundancy with
other existing fault types.
52
0010 reserved
Defined in previous revision of this specification as
compare failure
. Eliminated due to redundancy with
other existing fault types.
53
0011 temperature low
This sub type is used for failures where the ECU
calculates a low temperature condition based upon the
duration of certain operating parameters.
54
0100 temperature high
This sub type is used for failures where the ECU
calculates a high temperature condition based upon the
duration of certain operating parameters.
55
0101 expected number of transitions/
events not reached
This sub type is used for failures where the ECU
monitors a parameter over time within specified limits
and detects fewer than the expected number of
transitions.
56
0110 allowable number of transitions/
events exceeded
This sub type is used for failures where the ECU
monitors a parameter over time within specified limits
and detects more than the expected number of
transitions.
57
0111 reserved
Defined in previous revision of this specification as