Subaru IMPREZA 2004 Service Manual page 336

ENGINE (DIAGNOSTICS)
2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refers to data denoting the current operating condition of analog input/output, digital input/output or the pow-
ertrain system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
PID Data
01 Number of emission-related powertrain DTC and malfunction indicator light status
03 Fuel system control status
04 Calculated engine load value
05 Engine coolant temperature
06 Short term fuel trim
07 Long term fuel trim
0B Intake manifold absolute pressure
0C Engine revolution
0D Vehicle speed
0E Ignition timing advance
0F Intake air temperature
10 Air flow rate from manifold absolute pressure sensor
11 Throttle valve opening angle
13 Check whether oxygen sensor is installed.
Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor—bank
15
1 sensor 2
1C On-board diagnosis system
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to access generic OBD-II PIDs (MODE
$01).
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refers to data denoting the operating condition when trouble is sensed by on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
PID Data
02 DTC that caused CARB to require freeze frame data storage
03 Fuel system control status
04 Calculated engine load value
05 Engine coolant temperature
06 Short term fuel trim
07 Long term fuel trim
0B Intake manifold absolute pressure
0C Engine revolution
0D Vehicle speed
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to access freeze frame data (MODE
$02).
OBD-II General Scan Tool
EN(H4SO)(diag)-30
Unit of measure
ON/OFF
—
%
°C
%
%
kPa
rpm
km/h
°
°C
g/sec
%
—
V and %
—
Unit of measure
—
—
%
°C
%
%
kPa
rpm
km/h