Mode 5: Overview

Output of oxygen sensor data.

The data blocks of the modes are referred to as parameter identification (PID).

After polling by a system tester, all systems relevant to OBD respond with their addresses. In the case of the Boxster, this is the DME/ECM with address $17. In the case of Tiptronic vehicles, this is the transmission control with address $1A.

If the control module outputs data, it also indicates the mode, the PID number and its address.

For example:

Fig 1: Identifying PID Number & Address (Mode 5)

Courtesy of PORSCHE OF NORTH AMERICA, INC.

The data are outputted with mode 41 in mode 1, mode 42 in mode 2, mode 43 in mode 3, etc.