How To Use General Scan Tool

Prepare a scan tool (general scan tool) required by SAE J1978.
Open the cover and connect the general scan tool to the data link connector located in the lower portion of the instrument panel (on the driver's side).

Fig 1: Locating Data Link Connector
Courtesy of SUBARU OF AMERICA, INC.
Using the general scan tool, call up the DTC and freeze frame data.
General scan tool functions consist of:
1. MODE $01: Current powertrain diagnostic data
2. MODE $02: Power train freeze frame data
3. MODE $03: Emission-related powertrain DTC
4. MODE $04: Clear/Reset emission-related diagnostic information
5. MODE $06: Request on-board monitoring test results for intermittently monitored systems
6. MODE $07: Request on-board monitoring test results for continuously monitored systems
7. MODE $09: Request vehicle information Read data according to repair procedures. (For detailed operation procedure, refer to general scan tool instruction manual.)
  NOTE: For details concerning DTC, refer to "LIST OF DIAGNOSTIC TROUBLE CODE (DTC) ". <Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >