Subaru LEGACY 2006 Manual page 386

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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)-70, 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 operation manual to clear or reset emission-related diagnostic in-
formation (MODE $04).
6. MODE $06
Refer to test value of troubleshooting and data of test limit on the support data bit sequence table. A list of
the support data is shown in the following table.
TID CID
$81 $01 Catalyst system efficiency below threshold
$01 Exhaust gas recirculation control circuit range/performance
$82
$02 Exhaust gas recirculation control circuit range/performance
$01 Evaporative emission control system (0.04 inch leak)
$02 Evaporative emission control system (0.04 inch leak)
$03 Evaporative emission control system (0.04 inch leak)
$83
$04 Evaporative emission control system (0.04 inch leak)
$05 Evaporative emission control system (0.02 inch leak)
$06 Evaporative emission control system (0.02 inch leak)
$84 $01 Front oxygen (A/F) sensor (Bank 1 Sensor 1)
Rear O2 sensor circuit slow response (Bank 1 Sensor 2) Rich → Lean
$01
$85
Rear O2 sensor circuit slow response (Bank 1 Sensor 2) Lean → Rich
$02
$01 Rear O2 sensor circuit (Bank 1 Sensor 2)
$41
$02 Rear O2 sensor circuit (Bank 1 Sensor 2)
7. MODE $07
Refer to the data of DTC (pending code) for troubleshooting result about emission in the first time.
8. MODE $09
Refer to data of vehicle specification (V.I.N., calibration ID, diagnosis frequency etc.).
General Scan Tool
Test value & Test limit
EN(H4SO)(diag)-25
ENGINE (DIAGNOSTICS)