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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 80 (8HP75 Automatic Transmission - DTCS P1DCE-00 To U1489-00) >> DTC Troubleshooting >> U11B9-00-Lost Communication With RF Hub

U11B9-00-Lost Communication With RF Hub

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The COMMUNICATION DIAGNOSTIC PROCEDURE MUST  be performed before replacing any component(s) or module(s). Perform the COMMUNICATION DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE .