National Instruments CAN 372139B-01 - Manual (Page 95)

Chapter 5 Automotive Diagnostic Command Set API for LabVIEW
© National Instruments Corporation 5-69 Automotive Diagnostic Command Set User Manual
error out describes error conditions. If the error in cluster indicated an
error, the error out cluster contains the same information. Otherwise,
error out describes the error status of this VI.
status is TRUE if an error occurred.
code is the error code number identifying an error. A value of 0
means success. A negative value means error: the VI did not
execute the intended operation. A positive value means warning:
the VI executed intended operation, but an informational warning
is returned. For a description of the code, wire the error cluster to
a LabVIEW error-handling VI, such as the Simple Error
Handler.
source identifies the VI where the error occurred.
Description
This VI disables the current ECU diagnostic mode. A diagnostic session stops only if
communication is established with the ECU and a diagnostic session is running. If no
diagnostic session is running, the default session is active. StopDiagnosticSession.vi cannot
disable the default session. If the ECU has stopped the current diagnostic session, it performs
the necessary action to restore its normal operating conditions. Restoring the normal
operating conditions of the ECU may include resetting all controlled actuators if they were
activated during the diagnostic session being stopped, and resuming all normal ECU
algorithms. You should call StopDiagnosticSession.vi before disabling communication with
Close Diagnostic.vi , but only if you previously used StartDiagnosticSession.vi .