Kia Picanto: Charging System / DC/DC Converter
Kia Picanto JA 2017-2025 Service & Repair 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 behind 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, but rather is transferred directly to the outputs. In
the booster phase, the vehicle voltage is adapted.
| Operation Principle |
|
Components and components location
| Component Location |
| 1. DC/DC converter |
Schematic diagrams
| Circuit Diagram |
Repair procedures
| Removal |
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Remove the crash pad lower panel.
(Refer to Body (Interior and Exterior) - "Crash Pad Lower Panel")
|
| 3. | Disconnect the DC/DC converter connector (A). |
| 4. | Remove the DC/DC converter (B) after removing the nut and scrow.
|
| Installation |
After
reconnecting the battery negative cable, ISG function does not operates
until the system is stabilized, about 4 hours. If disconnecting the
negative (-) battery cable from the battery during repair work for the
vehicle equipped with AMS function, Battery sensor recalibration
procedure should be performed after finishing the repair work. |
| 1. | Install in the reverse order of removal. |
Alternator
Specifications
Specification
▷ 13.5V, 120A [ISG only]
Item
Specification
Rated voltage 13.5V, 120A Speed in use 1,000 ...
Battery
Specifications
Specification
▷ CMF45L-DIN
Item
Specification
Capacity [20 hr/5 hr] (Ah) 45/36 Cold Cranking Amperage ( ...
Other information:
Kia Picanto JA 2017-2025 Service & Repair Manual: Indicators And Gauges
Troubleshooting Troubleshooting Error Item Failure symptom Inspection items Detailed inspections Relevant Parts/ ...
Kia Picanto JA 2017-2025 Service & Repair Manual: AVN System
Components and components location Component Location 1 . AVN head unit 2. Roof antenna (Radio+GPS/GNSS+DAB+GSM) 3. Multimedia jack 4 . Steering wheel remote control (SWRC) 5 . Hands-free mic Description and operation Description AVN system The AVN system simplifies sys ...
Copyright © www.kpicanto.com 2017-2025
