Kia Cee'd: Charging System / DC DC Converter Description and operation

Kia Cee'd JD Service Manual / Engine Electrical System / Charging System / DC DC Converter Description and operation

Description
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.
Operation Principle

  
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.
Alternator Repair procedures
Removal 1. Disconnect the battery negative terminal. 2. Loosen the mounting bolts (A) and then, turn the adjusting bolt (B) clockwise ...

DC DC Converter Components and components location
Component Location   1. DC/DC converter (LHD) 2. DC/DC converter (RHD) ...

Other information:

Kia Cee'd JD Service Manual: Neutral Switch Description and operation
Description • Signal of neutral switch is transmitted to the ECM in the neutral state. • This signal is blocked when gear changed. • When the signal is blocked, The ECM controls the fuel injection ...

Kia Cee'd JD Service Manual: Rear Door Module Repair procedures
Replacement 1. Remove the rear door window glass. (Refer to Rear Door - "Rear Door Window Glass") 2. Remove the rear door outside handle. (Refer to Rear Door - "Rear Door Outside Handle") ...

© 2017-2026 www.kceed.com