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Tahoe / Yukon Service Manual

DTC U196E

Cellular, Entertainment, and Navigation | Diagnostic Information and Procedures | Document ID: 5210943 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptor Wireless Charging Module License Compliance Material For symptom byte information, refer to Symptom Byte List. Circuit/System Description The A11 Radio monitors the T22 Wireless Accessory Charging Module for valid license compliance material. Conditions for Running the DTC The A11 Radio runs the program to detect if the T22 Wireless Accessory Charging Module license compliance material is valid. Battery voltage between 9–16 V DTC U020C not set Conditions for Setting the DTC The A11 Radio has detected the T22 Wireless Accessory Charging Module license compliance material is invalid. Conditions for Clearing the DTC A current DTC clears when the malfunction is no longer present. Reference Information Schematic Reference Data Communication Schematics Control Module References Description and Operation Data Link Communications Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification

  1. Ignition ON
  2. Verify DTC U196E is not set. ⇒ If DTC U196E is set 2.1. Using the scan tool under A11 Radio> Configuration/Reset Functions>Reset Functions> License Compliance Materials Download Error Counter Reset. 2.2. Verify DTC U196E is not set. ⇒ If DTC U196E is set. Replace the T22 Wireless Accessory Charging Module. ⇓ If DTC U196E is not set. All OK ⇓ If DTC U196E is not set
  3. All OK Repair Instructions Perform the Diagnostic Repair Verification after completing the repair. Control Module References for device replacement, programming and setup