Parameter Identification (PID)

PARAMETER IDENTIFICATION (PID)

The PID mode allows access to certain data values, analog and digital inputs and outputs, calculated values, and system status information. Throughout there are references to PID values. PID Data Monitor and Record can be accessed from the scan tool through the Diagnostic Data Link menu.

Selecting Parameter Identification (PID)
Connect the scan tool to the data link connector (DLC). Turn off all accessories. If the vehicle is equipped with a power take off (PTO) system or auxiliary idle control, it must be turned off to carry out the self-tests.
- Carry out the necessary vehicle preparation and visual inspection. Refer to Symptom charts, Quick Test Description. QT: Powertrain Control Module (PCM) Quick Test
- Refer to the scan tool manufacturers manual for instructions.
- Follow the operating instructions from the menu.
- Access and select the PIDs to begin monitoring.