DTC P0C3B-4B Dc/Dc Converter Temperature Sensor "A" High - Over Temperature: Action

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Check the integrity of the cooling system. Rectify as necessary
Using the Jaguar Land Rover approved diagnostic equipment, run application - ECU Diagnostics/Electric Power Inverter Converter D (EPICD)/Clear DTCs. Retest. Run application - ECU Diagnostics/Electric Power Inverter Converter D (EPICD)/Live Data - and select parameter - ECU Internal Temperature (0xD117). Check the signal value for plausibility. If the signal value is implausible:
- Raise a Technical Assistance (TA)
- Attach the Pathfinder session file using 'Pathfinder Sessions'
- Use the Diagnostic Trouble Code (DTC) as a reference number in the Customer Comments field
- Describe primary and secondary diagnostics completed