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: Parking Brake Lever Repair procedures
Removal    The parking brake cables must not be bent or distorted. This will lead to stiff operation and premature failure. 1. Remove the floor console assembly. (Refer t ...

Kia Cee'd JD Service Manual: Power Door Lock Switch Repair procedures
Inspection 1. The SJB can be diagnosed by using the GDS. The SJB communicates with the GDS which then displays inputs and outputs along with codes. It will be able to diagnose defects of power door lock/unlock with GDS quickly. GDS can operates ...

© 2017-2024 www.kceed.com