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Tahoe / Yukon Service Manual

DTC U1967

Cellular, Entertainment, and Navigation | Diagnostic Information and Procedures | Document ID: 5210941 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 Telematics Control Platform Module License Compliance Material For symptom byte information, refer to Symptom Byte List. Circuit/System Description The A11 Radio monitors the K73 Telematic Control Module for valid License Compliance Material. Conditions for Running the DTC The A11 Radio runs the program to detect if the K73 Telematic Control Module License Compliance Material is valid. Battery voltage between 9–16 V DTC U0198 not set Conditions for Setting the DTC The A11 Radio has detected the K73 Telematic Control 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 Circuit/System Verification  1. Ignition ON/Vehicle In Service Mode. 2. Verify DTC U1967 is not set. ⇒ If DTC U1967 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 U1967 is not set. ⇒ If DTC U1967 is set. Replace the K73 Telematic Control Module ⇓ If DTC U1967 is not set. All OK ⇓ If DTC U1967 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