Subaru 2009 IMPREZA Service Manual page 1251

ENGINE (DIAGNOSTICS)
2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refer 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
Number of emission-related powertrain DTC, and malfunction indicator light status and
$01
diagnosis support information
$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 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
$12 Secondary air control status
$13 Check whether oxygen sensor is installed.
$15 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor
$1C Supporting OBD system
$1F Elapsed time after starting the engine
$21 Running distance after MIL turns on
$24 A/F value and A/F sensor output voltage
$2E Evaporative purge
$2F Fuel level
$30 Number of warm ups after DTC clear
$31 Travel distance after DTC clear
$32 Fuel tank pressure
$33 Barometric pressure
$34 A/F sensor value, current
$3C Catalyst temperature
$41 Diagnostic monitor of each drive cycle
$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
$4D Engine operation time during MIL on
$4E Elapsed time after DTC clear
$51 Fuel used
$5A Relative accelerator opening angle
NOTE:
Refer to general scan tool manufacturer's instruction manual to access generic OBD-II PIDs (MODE $01).
General Scan Tool
Data
EN(H4DOTC)(diag)-30
Unit of measure
—
—
%
°C
%
%
kPa
rpm
MPH
°
°C
gm/s
%
—
—
V and %
—
sec
miles
— and V
%
%
—
miles
Pa
kPa
— and mA
°C
—
V
%
—
%
°C
%
%
%
%
min
min
—
%