| | Test results |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check:- That there are no faults in the engine management control unit;- The plausibility of all the parameters | Move on to Step 2 | Error detected in the control unit | Continue following the instructions on the diagnostic equipment |
| 2 | FAN OPERATING CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| For the 1.2 8v, 1.4 8v;Check the following, in order:- Engine temperature sensor See Test 1060OE ENGINE COOLANT TEMPERATURE SENSOR OPERATION CHECK- Fan engagement relay;- Connection between engine management control unit and fan relay;- Connection between relay and fan See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT | End of diagnosis | 1. Sensor defective2. Connections not correct3. Component defective4. Engine management control unit faulty | 1. Replace the temperature sensor2. Repair the connections3. Replace the component involved (in the case of a fuse, find out what caused it to blow).4. Check the control unit thoroughly (using the diagnostic equipment - Examiner or other instruments) and, if necessary, replace the engine management control unit |
| 2 | FAN OPERATING CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| For the 1.3 JTD 16v 75 Cv, 1.3 JTD 16v 90 Cv, 1.9 JTD 8v;Check the following, in order:- Engine temperature sensor See Test 1060OE ENGINE COOLANT TEMPERATURE SENSOR OPERATION CHECK- Fan engagement relay;- Connection between engine management control unit and fan relay;- Connection between relay and fan See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT | End of diagnosis | 1. Sensor defective2. Connections not correct3. Component defective4. Engine management control unit faulty | 1. Replace the temperature sensor Op. 1060G14 ENGINE COOLANT TEMPERATURE SENSOR - R.R. 2. Repair the connections3. Replace the component involved (in the case of a fuse, find out what caused it to blow).4. Check the control unit thoroughly (using the diagnostic equipment - Examiner or other instruments) and, if necessary, replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R |
