| 1 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect the Examiner diagnostic instrument and check CAN Network information for the absence of:- Inactive node/s
- Node/s with error/s
- Node/s with CAN network error/s
| Move on to Step 2 | 1. Impossible to communicate with the Body Computer | 1. Move on to Step 2 |
| 2. Instrument Panel Node inactive and/or with error | 2. Move on to Step 5 |
| 3. Engine Control Node inactive and/or incorrect | 3. Move on to Step 9 |
| 4. Fault on CAN network | 4. Move on to Step 13 |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Use an Examiner to asses the possibility of connection to the Body Computer Node, the lack of errors and the presence of parameters. | Move on to Step 3 | 1. Impossible to connect to the Body Computer control unit. | 1. Move on to Step 3 |
| 2. Presence of errors | 2. Continue as described by the diagnostic equipment |
| 3 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the power supply to the Body Compute Node and the wiring between the nodes are correct . Check in particular that each individual pin is correctly connected. | Move on to Step 4 | 1. Fault in positive electrical supply and/or earth | 1. Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 2. Electrical connections not operational | 2. Restore the damaged wiring to correct operation. |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Use an Examiner to check the possibility of connection to the Body Computer Node | Move on to Step 5 | Impossible to connect to the Body Computer. | Replace Body Computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. |
| 5 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present. | Move on to Step 8 | 1. System fault | 1. Move on to Step 6 |
| 2. Fault on CAN network | 2. Move on to Step 13 |
| 3. Presence of errors | 3. Continue as described by the diagnostic equipment |
| 6 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the electricity supply to the node is correct.Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected. | Move on to Step 7 | 1. Fault in positive electrical supply and/or earth | 1. Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 2. Electrical connections not operational | 2. Restore the damaged wiring to correct operation. |
| 7 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present. | Move on to Step 8 | Fault persists | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 8 | ACTIVE DIAGNOSIS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| With the Examiner in Instrument Panel Node mode, check that the heater plugs warning light is correctly activated in Active Diagnosis. | Move on to Step 9 | The heater plugs warning light does not flash | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 9 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Keeping the diagnostic instrument connected, check the Engine Control Node for the absence of:- System/component faults
- Faults in the CAN network/s
| Move on to Step 10 | 1. System/components faulty | 1. Move on to Step 10 |
| 2. Fault on CAN network | 2. Move on to Step 13 |
| 3. Presence of errors | 3. Continue following the instructions for the diagnostic equipment |
| 10 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the electricity supply to the node is correct.Check the wiring between the Body Computer and the NCM. In particular, check that each individual pin is properly connected | Move on to Step 11 | 1. Fault in positive electrical supply and/or earth | 1. Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 2. Electrical connections not operational | 2. Restore the damaged wiring to correct operation. |
| 11 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Using an Examiner check, in Engine Control Node mode, that there are no errors and that the parameters are present. | Move on to Step 12 | Fault persists. | Replace the Engine Management Control Unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R |
| 12 | ACTIVE DIAGNOSIS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| With the Examiner in Engine Control Node mode, check that the heater plugs warning light is correctly activated in Active Diagnosis. | Move on to Step 13 | The heater plugs warning light does not flash | Replace the Engine Management Control Unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R |
| 13 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the node power supply/electrical connection/s are correct.Check the wiring (network) between the Engine Management, Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected on each node. | Move on to Step 14 | 1. Fault in positive electrical supply and/or earth | 1. Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 2. Electrical connections not operational | 2. Restore the damaged wiring to correct operation. |
| 14 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | End of diagnosis | | |