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Home >> Subaru >> 2021 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) - Introduction >> General Scan Tool >> Operation >> Mode $02 (Powertrain Freeze Frame Data)
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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 Data Unit
$02 DTC that caused freeze frame data to be stored -
$03 Fuel system control status -
$04 Calculated engine load value %
$05 Engine coolant temperature °C
$06 Short term fuel trim %
$07 Long term fuel trim %
$0B Intake manifold absolute pressure kPa
$0C Engine speed rpm
$0D Vehicle speed MPH
$0E Ignition timing advance °
$0F Intake air temperature °C
$10 Intake air amount g/s
$11 Throttle valve absolute opening angle %
$12 Secondary air control status -
$13 Air fuel ratio sensor -
$15 Rear oxygen sensor voltage, compensation value V and %
$1F Elapsed time after starting the engine sec
$2E Evaporative purge %
$2F Fuel level %
$33 Barometric pressure kPa
$34 A/F value and A/F sensor current (bank 1 sensor 1) - and mA
$3C Catalyst temperature #1 °C
$42 ECM power voltage V
$43 Absolute load %
$44 A/F target lambda -
$45 Relative throttle opening angle %
$46 Ambient temperature °C
$47 Absolute throttle opening angle 2 %
$49 Absolute accelerator opening angle 1 %
$4A Absolute accelerator opening angle 2 %
$4C Target throttle opening angle %
$65 Neutral status -
NOTE: Refer to general scan tool manufacturer's operation manual to access freeze frame data (MODE $02).