Diagnostic Test

VERIFY THE DIAGNOSTIC TROUBLE CODE (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 the active DTCs.
  Is this DTC active?
  
  Yes
  - Refer to U0197-LOST COMMUNICATION WITH HANDS FREE PHONE MODULE (HFM) and perform the U0197-Lost Communication with Hands Free Phone Module diagnostic procedure.
  No
  - Refer to COMMUNICATION - DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.