Question

which of the following best describes parameter identification data (pid)?
a) input values and output states monitored by a scan tool.
b) data used to identify a vehicle using a scan tool.
c) preprogrammed data stored in the rom.
d) used by a scan tool to identify the software version of the pcm.

Explanation:

Parameter Identification Data (PID) in automotive diagnostics refers to real-time input values from vehicle sensors and output states of components that are retrieved and monitored using a scan tool. Option B refers to vehicle identification data, option C is fixed calibration data, and option D relates to PCM software identification, which are not PID.

Answer:

A) Input values and output states monitored by a scan tool.