FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Scantool Diagnostics





Smart Key Unit
B1991 Immobilizer TX Short Circuit To Ground - Scantool Diagnostics

Monitor Scantool Data

Check DTC
1. Connect GDS.
2. IG "ON" and engine "OFF".
3. Select "DTC Analysis" mode.
4. After erase DTC, keep the vehicle condition within "the enable conditions" .




5. Is the same DTC occurred again ?





Service Data Analysis
1. IG "OFF" and connect GDS.
2. IG "ON" and select "Current Data" menu.
3. Check the service data of SMART KEY HOLDER INSERT SIGNAL.

Specification :ON (When the fob is inserted in the holder.)




4. Is the service data within specifications ?