| 0 | PRELIMINARY CHECK | All OK | Problems encountered | Operation |
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| Check that the fault is not due to just one of the sensors located in the rear bumper. | Move on to Step 1 | Fault detected in one or more of the ultrasound sensors. | Move on to Step 14 |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Using an Examiner check that there are no errors in Parking Sensor Node mode with reverse gear engaged.Tow hook not fitted. | Move on to Step 6 | 1. Impossible to connect to the control unit.2. Presence of errors.3. The parameter value does not change.4. Tow hook present. | 1. Move on to Step 2.2. Move on to Step 5.3. Continue as instructed by the diagnostic equipment.4. Disconnect/check tow hook outlet. |
| 2 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
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| Check the electricity supply to the Parking Sensor Node is correct by carrying out the See Test | Move on to Step 3 | Fault in positive electrical supply and/or earth. | Restore correct power supply. |
| 3 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
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| Check the electrical connections at the Parking Sensor Node Computer, in particular, check that each individual pin is properly connected. | Move on to Step 4 | Electrical connections not operational. | Renew the damaged electrical connections See E3090 PARKING SENSOR |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Use an Examiner to check the possibility of connection to the Parking Sensor Node. | Move on to Step 1 | Impossible to connect to the control unit. | Replace the control unit. |
| 5 | ERROR CHECK | All OK | Problems encountered | Operation |
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| Check for the presence of one or more of the following errors using the Examiner in the Parking Sensor Node ambient:- Internal control unit error;- CAN line;- Reverse control;- Ultrasound sensors. | End of diagnosis. | 1. Internal control unit error detected.2. CAN line error.3. Reverse faulty.4. Ultrasound sensors faulty. | 1. Replace the control unit. Op. 5580H10 PARKING OBSTACLE DETECTION DEVICE ELECTRONIC CONTROL UNIT - R.R. 2. Continue as instructed by the diagnostic equipment.3. Move on to Step 12.4. Move on to Step 14. |
| 6 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Using the Examiner diagnostic equipment check, in Instrument Panel mode, that there are no errors and that the parameters are present. | Move on to Step 7 | 1. Impossible to connect to the control unit.2. Presence of errors. | 1. Continue as instructed in the See table K095 INSTRUMENT PANEL NOT WORKING 2. Continueas instructed in the See table K095 INSTRUMENT PANEL NOT WORKING |
| 7 | ACTIVE DIAGNOSIS CHECK | All OK | Problems encountered | Operation |
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| With the Examiner in the Instrument Panel Node ambient check that the buzzer is correctly activated in Active Diagnosis. | Move on to Step 14 | The component in question is not activated. | It is not controlled by the active diagnosis. Replace the Instrument Panel Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. |
| 8 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Using the Examiner check, in the Body Computer Node ambient, that there are no errors and that the reverse gear engaged parameter varies. | Move on to Step 10 | 1. Impossible to connect to the control unit.2. Presence of errors.3. The parameter value does not change. | 1. Move on to Step 9.2. Continue as instructed by the diagnostic equipment.3. Move on to Step 12. |
| 9 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
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| Check the electricity supply to the Body Computer Node is correct See E1050 CAN CONNECTION LINES | Move on to Step 13 | Fault in positive electrical supply and/or earth. | Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 10 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
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| Check the electrical connections between the NSP, NBC and NQS, in particular, check that each individual pin is properly connected. See E1050 CAN CONNECTION LINES | Move on to Step 14 | Electrical connections not operational. | Renew the damaged electrical connections. |
| 11 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Use an Examiner to check the possibility of connection to the Body Computer Node. | Move on to Step 11 | Impossible to connect to the control unit. | Replace the control unit. Op. 5580H10 PARKING OBSTACLE DETECTION DEVICE ELECTRONIC CONTROL UNIT - R.R. |
| 12 | OPERATION CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the wiring, the system and the reverse gear engaged sensor on the gearbox See E2022 REVERSING LIGHTS | Move on to Step 8 | 1. Wiring faulty.2. Reverse sensor not working. | 1. Restore the correct operation of the wiring.2. Replace the defective component. |
| 13 | CHECK SYSTEM EFFICIENCY | All OK | Problems encountered | Operation |
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| Check the efficiency of the Parking Sensor Node by carrying out the See Test 5580HB PARKING SENSOR SYSTEM OPERATION CHECK | Move on to Step 16 | 1. Supply wiring faulty.2. Fault in wiring for sensors on bumpers.3. Sensor/s on bumpers inefficient. | 1. Move on to Step 32. Move on to Step 153. Move on to Step 15 |
| 14 | ULTRASOUND SENSORS CHECK | All OK | Problems encountered | Operation |
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| Check correct operation of the ultrasound sensor circuit See E3090 PARKING SENSOR | End of diagnosis. | 1. Connection leads faulty.2. Fault in ultrasound sensor power supply3. Ultrasound sensor/s not working. | 1. Repair wiring.2. Replace parking sensor control unit Op. 5580H10 PARKING OBSTACLE DETECTION DEVICE ELECTRONIC CONTROL UNIT - R.R. 3. Replace ultrasound sensor/s Op. 5580H30 PARKING OBSTACLE DETECTION SYSTEM REAR SENSORS - R.R. |