Kia Forte BD Quiz
Body Electrical System

Smart Key Unit

In this manual: Body Electrical System
General Information — 8Maintenance — 32Engine Mechanical System — 47Engine Electrical System — 17Emission Control System — 10Engine Control System/Fuel System — 32Clutch System — 11Manual Transmission — 11DCT (Dual Clutch Transmission) System — 16Drive Shaft and Axle — 8Suspension System — 26Steering — 9Restraints — 11Brake System — 27Body (Interior and Exterior) — 119Body Electrical System — 98Heating, Ventilation, and Air Conditioning — 27
28steps
~168min
4/5difficulty
Done 0 of 28

Components and Component Location

Components

[4DR]

1. Integrated Body Control Unit (IBU)
2. Buzzer		 3. Trunk Lid Handle

[5DR]

1. Integrated Body Control Unit (IBU)
2. Buzzer		 3. Trunk Lid Handle

Circuit Diagrams

Connector and Terminal Function

No. Connector A Connector B Connector C
1 - Front Washer Switch_Input Driver Outside Handle Switch_Input
2 Puddle Lamp_Output - Passenger Outside Handle Switch_Input
3 - - Key Fob Search Signal_Output (on WPC)
4 - - -
5 External Buzzer_Output - RPM_input
6 Rear Center Seat Belt Indicator_Output Wiper Park Switch_Input SSB (+) Illumination_Output
7 Rear Left Seat Belt Indicator_Output Security Indicator_Output ACC relay_output
8 Rear Right Seat Belt Indicator_Output Brake Switch_Input IGN 1 Relay_Output
9 Passenger Seat Belt Indicator_Output Haptic_output IGN 2 relay_output
10 High Beam Switch_input Front Wiper Volume Switch_input Start Relay_Output
11 Outside Mirror Unfolding_Output - Driver Outside Handle Switch_output
12 Outside Mirror Folding_Output - Passenger Outside Handle Switch_output
13 - Dedicated DRL Internal Antenna 1 (+)_output
14 PDW alarm_output PDW option_input Inside antenna 2 (+)_output
15 PDW-R Output B-CAN_Low Internal Main Antenna 3 (+)_output
16 PDW-F Output Power B-CAN_High Rear bumper antenna (+)_output
17 PDW power_input Power_ground -
18 ESCL Enable_output ECU_ground -
19 ESCL unlock switch_input - -
20 ESCL (-)_output - -
21 - - SSB switch 1_input
22 KLINE_Immobilizer - SSB switch 2_input
23 - PDW Switch Indicator_Output AT: 'P' Position_input
MT: IGN (Clutch) Lock Switch_input
24 - Front Wiper Switch_Input ESCL_COM
25 Sunroof Status_Input - Wheel Speed Sensor_Input
26 PDW switch_input Multifunction Switch Ground_Input -
27 - Wiper Power Relay_Output -
28 - Auto Light Sensor Ground_Output -
29 - Auto Light Sensor Signal_Input -
30 LIN 1 (PDW) Auto Light Sensor Power_Output Start Feedback_Input
31 ESCL (+)_Output - Driver outside handle switch antenna_output
32 Light Switch_Input Front Wiper High Speed Relay_Output Passenger Outside Handle Switch Antenna_output
33 Fog Lamp Switch_Input Front Wiper Low Relay_Output Inside antenna 1 (-)_output
34 IGN 2_Input Front Wiper Low Reverse Switch_Input Inside antenna 2 (-)_output
35 IGN 1_Input P-CAN_Low Internal Main Antenna 3 (-)_output
36 ASS_input P-CAN_High Bumper Antenna (-)_Output
37 Power_battery (+) - -
38 ECU_Battery (+) - -
39 Immobilizer Antenna Output Power - -
40 Immobilizer Antenna Ground_Output - -

Repair Procedures

Removal

Integrated Body Control Unit (IBU)

  1. Remove the airbag lower panel.

    (Refer to Body - "Under Cover Panel")

  2. Remove the IBU (B) by loosening the mounting bolt and nut after disconnecting the connector (A).

Buzzer

  1. Disconnect the negative battery cable.

  2. Remove the under cover.

    Nu 2.0 MPI (Refer to Engine Mechanical System - "Engine Room Under Cover")

    Gamma 1.6 MPI (Refer to Engine Mechanical System - "Engine Room Under Cover")

  3. Remove the buzzer (A) after disconnecting the connector.

Luggage Compartment Lid Handle

  1. Disconnect the negative battery cable.

  2. Remove the trunk lid trim.

    (Refer to Body - "Trunk Lid Trim")

  3. Remove the inside rear combination light.

    (Refer to Lighting System - "Rear Combination Light")

  4. Remove the reflector (C) by loosening the nuts (B) after disconnecting the connector (A).

  5. Remove the rear view camera and trunk lid handle assembly (B) by loosening the screws after disconnecting the connector (A).

  6. Remove the rear view camera (B) and silicone gasket (C) by loosening the trunk lid handle screws (A).

Luggage Compartment Lid Handle

  1. Disconnect the negative battery cable.

  2. Remove the rear door trim panel.

    (Refer to Body - "Rear Door Trim Panel")

  3. Loosen the rear door garnish bracket mounting screws.

  4. Remove the rear door garnish bracket (B) by pressing the retaining hooks (A) in the direction of the arrow.

  5. Disconnect the rear view camera connector (A).

  6. Remove the license plate lamp socket (A) by turning it counterclockwise.

    [LH]

    [RH]

  7. Remove the luggage compartment door rear garnish panel (A) after loosening the mounting screws.

  8. Disconnect the luggage compartment door handle connector (A).

  9. Remove the rear view camera and luggage compartment door handle assembly (A) after loosening the mounting screws.

  10. Loosen the rear view camera mounting screws (A).

  11. Remove the rear view camera (A) from the luggage compartment door handle (B).

Installation

  1. Install in the reverse order of removal.

Inspection

Trunk Opener Switch

  1. Check the continuity between the terminals of the trunk opener switch.

  2. If continuity is not as specified, inspect the switch.

Liftgate Opener Switch

  1. Check the continuity between the terminals of the liftgate opener switch.

  2. If continuity is not as specified, inspect the switch.

Smart Key Neutralization

  1. Connect the KDS cable to the data link connector (DLC) on the lower driver-side instrument panel trim.

  2. After turning the ignition switch ON, select "Neutralization Mode".

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.