| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Interview the customer to check that the TRIP function have not been recently reset | Move on to Step 1 | One of the TRIP COMPUTER functions has been reset | The display reading will be "----" until sufficient distance has been covered to allow fuel consumption to be evaluated: if the value is not displayed after a few kilometres, continue to Step 1 |
| 1 | CAN CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect an EXAMINER and check the following on CAN NETWORK INFORMATION:- No control units inactive
- No faulty control units
- No control units with faulty CAN line
| Move on to Step 2 | 1. Fault on CAN network | 1. Continue following the instructions for the diagnostic equipment |
| 2. Communication impossible with the Body Computer | 2. Move on to Step 8 |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Keeping the diagnostic instrument connected, check the following on the BRAKE NODE:- No system/component errors
- No CAN faults
| Move on to Step 3 | 1. System/components faulty | 1. Continue following the instructions for the diagnostic equipment |
| 2. Fault on C-CAN network | 2. Move on to Step 8 |
| 3 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Keeping the diagnostic instrument connected, check the following on the INSTRUMENT PANEL NODE:- No system/component errors
- No CAN faults
| Move on to Step 4 | 1. System/components faulty | 1. Continue following the instructions for the diagnostic equipment |
| 2. Fault on C-CAN network | 2. Move on to Step 8 |
| 4 | ACTIVE DIAGNOSIS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| With the Examiner in Instrument Panel Node mode check that all segments of the LCD module are correctly activated in Active Diagnosis. | Move on to Step 7 | 1. One or more segments does not activate | 1. Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 2. Communication impossible with the instrument panel | 2. Move on to Step 5 |
| 5 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the electricity supply to the Instrument Panel Node is correct | Move on to Step 6 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow) |
| 6 | CHECK ELECTRICAL CONNECTIONS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| 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 | Electrical connections not operational | Renew the damaged electrical connections |
| 7 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Using an Examiner check, in Body Computer Node mode, that there are no errors | Move on to Step 10 | 1. Impossible to connect to the Body Computer control unit. | 1. Move on to Step 8 |
| 2. Presence of errors | 2. Continue by following the instructions on the diagnostic instrument |
| 8 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the electricity supply to the Body Computer Node is correct. | Move on to Step 9 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 9 | 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 10 | Impossible to connect to the Body Computer control unit. | Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R |
| 10 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | End of diagnosis | | |
