FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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OBD-II General Scan Tool

1. HOW TO USE OBD-II GENERAL SCAN TOOL

1. Prepare a general scan tool (OBD-II general scan tool) required by SAE J1978.





2. Open the cover and connect the OBD-II general scan tool to the data link connector located in the lower portion of the instrument panel (on the driver's side).

3. Using the OBD-II general scan tool, call up diagnostic trouble code(s) and freeze frame data. OBD-II general scan tool functions consist of:
1. MODE $01: Current powertrain diagnostic data
2. MODE $02: Powertrain freeze frame data
3. MODE $03: Emission-related powertrain diagnostic trouble codes
4. MODE $04: Clear/Reset emission-related diagnostic information

Read out data according to repair procedures. (For detailed operation procedures, refer to the OBD-II General Scan Tool Operation Manual.)

NOTE: For details concerning diagnostic trouble codes, refer to the DIAGNOSTIC TROUBLE CODE (DTC) LIST.

2. DATA LINK CONNECTOR (FOR OBD-II GENERAL SCAN TOOL AND SUBARU SELECT MONITOR)

1. This connector is used both for OBD-II general scan tools and the Subaru Select Monitor.





2. Terminal No.4 to No.6 of the data link connector is used for the Subaru Select Monitor signal.

CAUTION: Do not connect any scan tools other than the OBD-II general scan tools and the Subaru Select Monitor, because the circuit for the Subaru Select Monitor may be damaged.


3. CURRENT POWERTRAIN DIAGNOSTIC DATA (MODE $01)

Refers to data denoting the current operating condition of analog input/output, digital input/output and/or the powertrain system.





A list of the support data and PID (Parameter Identification) codes are shown in the following table.

NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to access generic OBD-II PIDs (MODE $01)

4. POWERTRAIN FREEZE FRAME DATA (MODE $02)
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.

NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to access freeze frame data (MODE $02)

5. EMISSION-RELATED POWERTRAIN DIAGNOSTIC TROUBLE CODE (MODE $03.
Refers to data denoting emission-related powertrain diagnostic trouble codes.
For details concerning diagnostic trouble codes, refer to the DIAGNOSTIC TROUBLE CODE (DTC) LIST.

NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to access emission-related powertrain diagnostic trouble codes (MODE $03.)

6. CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION (MODE $04)
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 diagnostic information (MODE $04).