FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Scantool Diagnostics





HEV Control System
P1679 Immobilizer-EMS Data Fail (Data frame, CS, Message error) - Scantool Diagnostics

Monitor DTC Status

1. Ignition ON (SSB LED "BLUE") & Vehicle "STOP".
2. Connect GDS and select "DTC Analysis" mode.
3. Click "DTC Status" on the menu bar to view DTC information.
4. Confirm that the "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in Freeze Frame Data or Enable Conditions.
5. Read the "DTC Status" parameter.




6. Is parameter displayed "Present fault"?











Monitor Scantool Data

1. Ignition ON (SSB LED "BLUE") & Vehicle "STOP".
2. Connect GDS and select "Data Analysis" mode.
3. Selet "Currnet Data"mode and monitor "ECU Ready" parameter.

Specification :




Fig.1) Test Condition : Authentication is completed.
4. Is the measured data within specifications?