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Diagnostic Test

VERIFY DTC IS ACTIVE
NOTE:
Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
1. Turn the ignition on.
2. With the scan tool, read active DTCs.
  Is this DTC active?
  
  Yes
  - Refer to U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM) and perform the diagnostic procedure.
  No
  - Refer to STORED LOST COMMUNICATION DTCS and perform the diagnostic procedure.