Kia Cee'd: Charging System / DC DC Converter Description and operation
Due to the considerably more frequent occurrence of starting operations, the
electrical load that occurs often leads to voltage dips in the vehicle network.
In order to stabilize the power supply for certain voltage-sensitive electrical
components, a DC/DC converter is used in conjunction with the ISG function.
The DC DC converter supplies the relay with a voltage that also remains constant
during the starting operation.
The DC/DC converter is fitted at the behind of the glove box.
Via the test leads for input voltage and the start relay , the electronics decide
whether the power is supplied to the output via the bypass or the DC/DC converter.
In the bypass mode, the on-board supply voltage is not fed across the DC/DC
converter, rather is transferred directly to the outputs. In the booster phase,
the vehicle voltage is adapted.

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In the ISG mode, if the power of an audio system turns OFF by
drawdown while “Auto Starting” or “Idle Starting” function operates,
replace the DC/DC converter.
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Removal
1.
Disconnect the battery negative terminal.
2.
Loosen the mounting bolts (A) and then, turn the adjusting bolt (B)
clockwise ...
Component Location
1. DC/DC converter (LHD)
2. DC/DC converter (RHD)
...
Other information:
Ford Escape 2020-2026 Owners Manual: All-Wheel Drive
How Does All-Wheel Drive Work
All-wheel drive uses all four wheels to
power the vehicle. This increases traction,
enabling you to drive over terrain and road
conditions that a conventional two-wheel
drive vehicle cannot. The AWD system
turns on when needed and does not require
input from you.
...
Kia Cee'd JD Owners Manual: Operating conditions
To operate:
Press the BSD switch with the Ignition
switch in the ON position.
The indicator on the BSD switch will illuminate.
When the vehicle speed exceeds 30
km/h (20 mph), the system will be activated.
To cancel:
Press the BSD switch again. The indicator
on the switch will go off.
W ...