Situation: A 'Gearbox fault' message may be displayed on the Instrument Cluster along with one or more of the following Diagnostic Trouble Codes (DTC) stored in the Transmission Control Module (TCM): P0600-04, P0710-27, P0710-64, P0712-11, P0713-13, P0975-19, P0978-19, P0981-19, P0984-19, and P099B-14.
