Lincoln Nautilus Manuals

Lincoln Nautilus: Voltage Converter/Inverter / Direct Current/Direct Current (DC/DC) Converter Control Module - Overview. Description and Operation

Lincoln Nautilus 2018-2022 Service Manual / Electrical / Battery and Charging System / Voltage Converter/Inverter / Direct Current/Direct Current (DC/DC) Converter Control Module - Overview. Description and Operation

OVERVIEW

The Low voltage Direct Current/Direct Current (DC/DC) converter, also known as the Voltage Quality Module (VQM), is on vehicles equipped with the auto-start-stop system.

Auto-start-stop technology provides fuel savings by turning the engine off when the vehicle is stopped and then automatically restarting the engine when the driver is ready to continue driving. An auto-stop-start event, also called an idle-stop event, begins when the driver presses their foot on the brake pedal and the vehicle speed becomes zero and the engine automatically shuts off. The auto-stop-start event continues as the driver maintains holding of the brake pedal (e.g. for the duration of a traffic light). When the driver releases the brake pedal, the engine automatically restarts. The end of the auto-start-stop event occurs after the engine has restarted.

The Low voltage Direct Current/Direct Current (DC/DC) converter boosts the voltage level for a select few components during an auto-start event. Once the starter engages, it draws a large amount of current and the entire vehicle voltage level drops. There are some components that cannot experience a large voltage drop, such as the audio system and instrument cluster. The Low voltage Direct Current/Direct Current (DC/DC) converter keeps the voltage boosted to those components for a short time while the starter is cranking to prevent the components from resetting or shutting down.

For more information on the operation of the auto-start-stop system, refer to the Owner's Literature or
Refer to: Starting System (303-06A) .

    Direct Current/Direct Current (DC/DC) Converter Control Module - Component Location. Description and Operation

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    Direct Current/Direct Current (DC/DC) Converter Control Module - System Operation and Component Description. Description and Operation

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    Categories

    Parking Aid Indicators. Parking Aids – Troubleshooting

    Parking Aid Indicators

    Lincoln Nautilus. Parking Aid Indicators. Parking Aids – Troubleshooting

    The system provides object distance indication through the information and entertainment display.

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