Home >> Jaguar >> 2017 >> XJR L >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Module (TCM) >> Description And Operation >> Transmission Control Module (TCM) >> DTC P061B-02: Internal Control Module Torque Calculation Performance - General signal failure >> Possible Causes