Subaru 2009 IMPREZA Service Manual page 449

ENGINE (DIAGNOSTICS)
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refer to data denoting the operating condition when trouble is detected by on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
PID
$02 DTC that caused the freeze frame data storage required by CARB
$03 Fuel system control status
$04 Calculated engine load value
$05 Engine coolant temperature
$06 Short term fuel trim (Bank 1 Sensor 1)
$07 Long term fuel trim (Bank 1 Sensor 1)
$0B Intake manifold absolute pressure
$0C Engine speed
$0D Vehicle speed
$0E Ignition timing advance
$0F Intake air temperature
$10 Air flow rate from mass air flow sensor
$11 Throttle valve absolute opening angle
$13 Check whether oxygen sensor is installed.
$15 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (Bank 1 Sensor 2)
$1C Supporting OBD system
$1F Elapsed time after starting the engine
$2C Target EGR
$2D EGR deviation
$2E Evaporative purge
$2F Fuel level
$32 Fuel tank pressure
$33 Barometric pressure
$42 ECM power voltage
$43 Absolute load
$44 A/F target lambda
$45 Relative throttle opening angle
$46 Ambient temperature
$47 Absolute throttle opening angle 2
$49 Absolute accelerator opening angle 1
$4A Absolute accelerator opening angle 2
$4C Target throttle opening angle
NOTE:
Refer to general scan tool manufacturer's instruction manual to access freeze frame data (MODE $02).
4. MODE $03 (EMISSION-RELATED POWERTRAIN DTC)
Refer to "List of Diagnostic Trouble Code (DTC)" for information about data denoting emission-related pow-
ertrain DTC. <Ref. to EN(H4SO)(diag)-86, List of Diagnostic Trouble Code (DTC).>
5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
Refer to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).
NOTE:
Refer to general scan tool manufacturer's instruction manual to clear the emission-related diagnostic infor-
mation (MODE $04).
General Scan Tool
Data
EN(H4SO)(diag)-32
Unit of measure
—
—
%
°C
%
%
kPa
rpm
MPH
°
°C
g/s
%
—
V and %
—
sec
%
%
%
%
Pa
kPa
V
%
—
%
°C
%
%
%
%