Parameter Identification (PID) Description
The Parameter Identification (PID) mode allows access to powertrain control module (PCM) information. This includes analog and digital signal inputs and outputs along with calculated values and system status. There are two types of PID lists available and both are used throughout this manual. The first is the Generic (J1979) OBDII PID list. This is a standard set of PIDs for all manufacturers all scan tools must be able to access. The second is a Ford specific (J2190) list which can be accessed by an adequate scan tool. When accessing any of these PIDs, the values will be continuously updated. The Generic or Ford PID list provides definitions and values in appropriate units. For more information, refer to the Society of Automotive Engineers (SAE) J2205 document.
Generic OBD II PID List
"X" in the "Freeze Frame" column denotes both a mode 1 and mode 2 PID (real time and freeze frame).
a OL = Open loop, have not satisfied conditions for closed loop.
b Percent engine load adjusted for atmospheric pressure. 1 Individual oxygen sensor fuel trim adjustment is not supported.
2 Individual oxygen sensor fuel trim adjustment is not supported.
3 Individual oxygen sensor fuel trim adjustment is not supported.
4 Individual oxygen sensor fuel trim adjustment is not supported.
CL = Closed loop using O2S(s) as feedback for fuel control.
OL DRIVE = Open loop due to driving conditions (heavy accel).
OL FAULT = Open loop due to fault with all upstream O2S sensors.
CL FAULT = Closed loop fuel control, but fault with one upstream O2S sensor on dual bank vehicles.
Ford PID List
Note: PID MP LRN must be set to YES before the Misfire Monitor will be enabled.
