323000794 - K027 ENGINE COOLANT OVERHEATING SIGNALLED BY THE INSTRUMENT

0PRELIMINARY CHECKAll OKProblems encounteredOperation
Check that the engine management warning light is not on with the engine started.Move on to Step 2.Warning light on.Move on to Step 1.
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the Examiner equipment to the diagnostic socket.Check that there are no faults in the Engine Management Node.Move on to Step 2.Presence of faults.Continue as instructed by the diagnostic equipment.
2ENGINE TEMPERATURE SENSOR CHECKAll OKProblems encounteredOperation
Check that the engine temperature sensor is working properlyMove on to Step 3.Sensor defective.Replace the temperature sensor.    Op. 1056B50 ENGINE COOLANT TEMPERATURE SENSOR - R + R
3CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Keeping the Examiner equipment connected to the diagnostic socket, check the operation of the pointer in the instrument panel in active diagnosis.Move on to Step 4.Pointer does not moveReplace the instrument panel.    Op. 5560B10 CONTROL PANEL - R+R
4ELECTRICAL CIRCUIT CHECKAll OKProblems encounteredOperation
Check the insulation of the connection between the engine coolant temperature sensor and the engine management control unit.Move on to Step 5.Cables not correctly insulated.Restore cable insulation.
5CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer present.End of diagnosis.The fault persists.Replace Body Computer.    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.