Scantool Diagnostics

Smart Key Unit
B1625 EMS Communication Data Failure - Scantool Diagnostics

Monitor GDS Data

Check DTC status
1. Check DTC on the ECM/PCM with GDS.
2. Check that there is any DTC related ECM/PCM.
3. Perform Troubleshooting the DTC from ECM/PCM with appropriate DTC Troubleshooting Guide first.
4. Repair or replace as necessary after erasing DTC with GDS.
5. Check DTC on SMK Module side and erase the DTC with GDS.
6. Has the DTC gone after erasing with GDS?