| On board control unit -J519- |

WARNING | Before working on the electrical system, disconnect the battery earth strap. |
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| Before disconnecting the battery consult the client about the anti-theft coding on radios that have this feature. |
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| When the battery is reconnected, check the vehicle equipment (radio, clock, electric comfort system, etc.), following the indications in the Workshop Manual and/or the Operating Instructions. |

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| The Data bus diagnosis interface -J533- is incorporated into the on-board network control unit -J519-. |
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| Additional information: |
| The on board network control system -J519- has the following functions in the vehicle: |
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| Electrical management of the charge |
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| Control of outside lights |
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| Lead control of the fuel pump |
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| Control of the windscreen wiper/washer, intermittent operation and rain sensor |
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| Heating for the exterior rear view mirrors and rear window |
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| Control of the indicator lights and the hazard lights |
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| Automatic speed regulator (transforms the signals to the engine data can bus) |
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| Illumination of the instruments and the switches |
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| Function maintenance (voltage supply) for the sunroof and the electric windows |
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| Magnet activation for selector lever locking |
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| Data bus diagnosis interface -J533- |

Note | If the on-board network control unit -J519- or the data bus diagnosis interface -J533-, must be replaced, before disassembling carry out operations → Chapter. Replace the on-board power supply control unit -J519-. |
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