| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
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| Interview the customer to check that the TRIP function has 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 CHECK | All OK | Problems encountered | Operation |
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| 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 network2. Communication with the Body Computer impossible | 1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 8 |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| 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 faulty2. Fault on C-CAN network | 1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 9 |
| 3 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| 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 faulty2. Fault on C-CAN network | 1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 9 |
| 4 | ACTIVE DIAGNOSIS CHECK | All OK | Problems encountered | Operation |
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| 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 do not activate2. Communication with the instrument panel impossible | 1. Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R 2. Move on to Step 5 |
| 5 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
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| 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 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
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| Check the electrical connections 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 | Operation |
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| Using an Examiner check, in Body Computer Node mode, that there are no errors. | Move on to Step 9 | 1. Impossible to connect to the Body Computer control unit2. Presence of errors | 1. Move on to Step 82. Continue by following the instructions on the diagnostic instrument |
| 8 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
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| 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 | Operation |
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| Using an Examiner, check that the Body Computer Node is working properly. | End of diagnosis | Body Computer faulty | Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R |