Subaru 2002 IMPREZA Service Manual page 261

OBD-II GENERAL SCAN TOOL
ENGINE (DIAGNOSTICS)
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refers to data denoting the operating condition when trouble is sensed by the on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
I
PID
I
Data
I
Unit of measure
I
02
03
04
05
06
Trouble code that caused CARB required freeze frame data storage
Fuel system control status
-
Calculated engine load value %
Engine coolant temperature "C
-
Short term fuel trim
O/O
r-
07
I
Long term fuel trim
I
Yo
I
O B
O C
OD
Intake manifold absolute pressure kPa
Engine revolution r Pm
Vehicle speed km/h
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to access freeze frame data (MODE
$02).
4. MODE $03 (EMISSION-RELATED POWERTRAIN DIAGNOSTIC TROUBLE CODE)
Refer to Read Diagnostic Trouble Code for information about data denoting emission-related powertrain di-
agnostic trouble codes. <Ref. to EN(D0HC TURBO)-45, Read Diagnostic Trouble Code.>
Refers to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to clear or reset emission-related diag-
nostic information (MODE $04).
5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
EN(D0HC TURBO)-37