Kia Cadenza YG: Charging System / Alternator Schematic Diagrams

Kia Cadenza YG 2016-2021 Service Manual / Engine Electrical System / Charging System / Alternator Schematic Diagrams

Circuit Diagram

   
•
COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or higher, low voltage: 2V or lower)
•
FR signal - The transistor activation signal inside the alternator monitors the voltage generated by the alternator to control the excitation current before it sends the FR signal to the ECM. (At certain RPM/electric loads, the FR duty can remain static. However, more often, the RPM, electric load, target voltage, etc. are always changing in the vehicle, so the FR must also change constantly)
•
L signal - Turns on the battery warning lamp on the dashboard when the battery charging system malfunctions. (Conditions for turning on the lamp - overcharge, over discharge, a field coil blown inside the alternator)
•
B+ terminal - The output voltage from the generator travels to the battery via the B+ terminal.

    Specification ItemSpecificationRated voltage13.5V , 150ASpeed in use1,500 ~ 18,000rpmVoltage regulatorIC Regulator built in typeDefault regulated voltage (V) [COM terminal]14.

    Removal 1. Disconnect the battery negative terminal. 2. Remove the engine cover. 3. Disconnect the alternator connector (A) and cable (B) from the ''B'' terminal.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Troubleshooting

    Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.

    Kia Cadenza YG 2016-2021 Service Manual: Blower Unit Repair procedures

    Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower unit.(Refer to HA group – heater unit). 3. Remove the blower unit (A) from the heater unit after loosening a mounting bolt and 3 screws.     Make sure that there is no air leaking out of the blower and duct joints.

    Categories

     
    Copyright © 2026 www.kcadenzavg.com - 0.0238