Operations
6.1.4 Response to diagnostic command
When the master device receives an EXECUTE DEVICE DIAGNOSTIC command and the slave device is present, the master device checks the PDIAG- signal for up to 6 seconds to see if the slave device has completed the self- diagnosis successfully.
The master device does not check the DASP- signal.
After the slave device receives the EXECUTE DEVICE DIAGNOSTIC command, it shall report the result of the
PDIAG- signal: negated within 1 ms and asserted within 5 seconds
When the IDD is set to a slave device, the IDD asserts the DASP- signal when negating the PDIAG- signal, and negates the DASP- signal when asserting the PDIAG- signal.
If
the slave
device
is
preset,
PDIAG- is checked for up to 
6 seconds.
