Kia Picanto: Body Electrical System / Indicators And Gauges

Kia Picanto JA 2017-2024 Service & Repair Manual / Body Electrical System / Indicators And Gauges

Troubleshooting

Error Item

Failure symptom

Inspection items

Detailed inspections

Relevant Parts/
Components

Screen display

LCD screen does not turn on

1)	Connector attachments

2)	Components

1)	Check the connector attachments

2)	Check B+, IGN and GND wiring

3)	Check the components

Connectors, wiring, fuses, dashboard

Warning light

Airbag warning lamp malfunction

1)	Connector attachments

C-CAN

3)	Components

1)	Check airbag + signal (connectors)

2)	Check C-CAN (ACU4) signal

3)	Check the FPC attachment inside the dashboard

ACU Connectors, wiring, fuses, dashboard

Mode conversion

Integrated driving mode malfunction

1)	Connector attachments

Switch

3)	Components

1)	Check the switch input (connector)

2)	Check the switch signal input (disconnection or shorting)

3)	Check conversion with dashboard component

Switch connector, wiring dashboard

Illumination

Interior light brightness cannot be controlled.

1)	Connector attachments

Switch

3)	Components

1)	Check if the light switch's input signal reaches the connector

2)	Check ILL- and DETENT signals

3)	Check the TAIL+ signal input

Switch connector, wiring dashboard

Warning Sound

No dashboard alarm

1)	Connector attachments

2)	Car speakers

3)	Components

1)	Check the speaker output connector

2)	Check the car speakers

Speaker connectors, wiring dashboard

Fuel indicator

Faulty fuel gauge indication

1)	Connector attachments

2)	Fuel sender

3)	Components

1)	Check fuel input and GND connectors (open, short or input resistance values)

2)	Check fuel sender

Fuel sender connector, wiring dashboard

Components and components location

Components

[Standard Type ("2.6 Inch")]

[Supervision Type ("2.6 Inch")]

Connector Pin Information

Connector A

No.	Description	No.	Description
1	Ground	21	Trip switch (-)
2	Illumination (-)	22	Trip switch 1 (+)
3	M/T ('R' Position)	23	Trip switch 2 (+)
4	-	24	Turn signal lamp (Right)_Input
5	Dentent	25	Turn signal lamp (Left)_Input
6	-	26	Headlamp low (+)_Input
7	-	27	Headlamp high (+)_Input
8	-	28	Brake oil switch_input
9	-	29	Body-CAN (Low)
10	-	30	Body-CAN (High)
11	Immobilizer_Input	31	Alternator_Output
12	Vehicle speed_Output	32	Chassis-CAN (High)
13	Alternator_Input	33	Chassis-CAN (Low)
14	Fuel sender (+)_Input	34	Outside temp_Input
15	Vehicle speed_Input	35	FFV 5V (+)_Output LPI Fuel_Input
16	Fuel sender (-)_Input	36	-
17	Parking brake switch_Input	37	Ground
18	Air bag (+)_Input	38	LDC Battery (+)_Input
19	Oil press switch_Input	39	IGN1
20	Tail lamp_Input	40	Battery (+)

Connector B

No.	Description	No.	Description
1	Front fog lamp (+)_Input	13	Assist seat belt switch (-)_Input
2	Rear fog lamp (+)_Input	14	Assist seat mat switch (-)_Input
3	Rear fog switch (-)_Input	15	Sunroof open switch (-)_Inpu
4	Door open switch (-)_Input	16	Ground
5	Driver side door open switch (-)_Input	17	-
6	Trunk open switch (-)_Input	18	Rear defogger relay (-)_Output
7	Hood open switch (-)_Input	19	Front deicer relay (-)_Output
8	Key in switch (-)_Input	20	Assist seat belt indicator (-)_Output
9	Tail lamp switch (-)_Input	21	Tail lamp relay (-)_Output
10	Rear defogger switch (-)_Input	22	Rear SBR Indicator SYNC(-)_Output
11	Rear SBR buzzer (-)_Input	23	Key out_Input
12	Driver seat belt switch (-)_Input	24	-

Schematic diagrams

Circuit Diagram

[General Standard]

[General Supervision]

Description and operation

Description

Communication Network Diagram

Abbreviation	Explanation
ABS	Anti-lock Brake System
ACU	Airbag Control Unit
AEB	Autonomous Emergency Braking
B-CAN	Body Controller Area Network
BCM	Body Control Module
C-CAN	Chassis Controller Area Network
CLU	Cluster Module
DATC	Dual Automatic Temp Control
EMS	Engine Management System
ESC	Electronic Control Suspention
EVP	Eva Vacuum Pump
I-BOX	Telematics System
LPI	Liquid Petroleum Injection
H_U	Head Unit (Audio / AVN)
M-CAN	Multi media Controller Area Network
MDPS	Motor Driven Power Steering
PGS	Parking Guide System
SLM	Seat belt remind & Lighting Module
SMK	Smart Key Unit
TCU	Transmission Control Unit
TMU	Telematics System
TPMS	Tire Pressure Monitoring System

Cluster Variant Coding

As we have more options (ESC, MDPS etc.) in the car, the dashboard now has more information to display depending on the chosen options.

For this reason, we need to learn which options the vehicle has when replacing the dashboard.

To address this issue, a course of learning based on the option required for the vehicle when replacing the dashboard should be carried out.

This is called Variant Coding.

Repair procedures

Removal

•	Put on gloves to protect your hands.

•	When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.

1.	Disconnect the negative (-) battery terminal.

2.	Remove the cluster fascia panel. (Refer to Body - "Cluster Fascia Panel")

3.	Separate the instrument cluster (A) after loosening the mounting screws.

4.	Remover the instrument cluster after disconnecting the cluster connectors (A).

Installation

1.	Install the cluster after connect the cluster connectors.

2.	Install the cluster fascia panel.

Connect the negative (-) battery terminal.

Perform variant coding after exchanging the instrument cluster.

Inspection

Check point (Warning indicator)

•	Fault conditions and normal operating conditions, refer to the owner's manual.

Ref Symbol

Name

Color

Signal Input

Signal Control

Check Point

Turnsignal (Left)

Green

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Turnsignal (Right)

Green

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Tail Lamp

Green

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Front
Fog Lamp

Green

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Rear Fog Lamp

Yellow

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Low Beam

Green

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

High Beam

Blue

CAN

BCM
(Gateway)

1)	Multifunction Switch

BCM

3)	CAN Failure

Master Symbol

Yellow

CAN

BSD

1)	BSD System

2)	CAN Failure

TPMS

1)	TPMS System

2)	CAN Failure

BCM

1)	External lamps

BCM

3)	CAN Failure

Hard-wired

Fuel Sender

1)	Fuel Sendar Failure

2)	Wiring Failure

Low Washer

1)	Whasher fluid lever sensor

2)	Wiring Failure

Digital Input

Reminders when service checks

Battery Charge

Red

CAN

ECM

1)	Charging System

2)	CAN Failure

Oil Pressure

Red

Hard-wired

ECM

1)	ECM System

2)	Hard-wired

3)	CAN Failure

Check Engine

Yellow

CAN

ECM

1)	ECM System

2)	CAN Failure

Immobilizer

Yellow

CAN

BCM
(Gateway)

1)	SMK System

BCM

3)	CAN Failure

4)	Hard-wired

Parking Brake
Brake Fluid
EBD
EPB

Red

CAN

BCM
(Gateway)
EBD
EPB
ABS
TCS

BCM

2)	ABS System

3)	EPB System

4)	CAN Failure

5)	Parking Brake Switch

6)	Brake Oil Lever Sensor

ABS

Yellow

CAN

ABS

1)	ABS System

2)	CAN Failure

ESC

Yellow

CAN

TCS

1)	ABS System

2)	CAN Failure

ESC Off

Yellow

CAN

TCS

1)	ABS System

2)	CAN Failure

Seat Belt

Red

CAN

BCM
(Gateway)

BCM

2)	CAN Failure

Airbag

Red

CAN

SRSCM

1)	SRSCM System

2)	CAN Failure

EPS
(MDPS)

Red

CAN

MDPS

1)	MDPS Unit System

2)	MDPS Motor

3)	CAN Failure

TPMS

Yellow

CAN

TPMS

1)	TPMS System

2)	TPMS Sensor

3)	CAN Failure

Fuel Warning

Yellow

Direct
(Micom)

Fuel Segment

1)	Fuel Sendar Failure

2)	Wiring Failure

Door Open

Red

CAN

BCM
(Gateway)

BCM

2)	CAN Failure

3)	Door Sensor/switch

Trunk Open

Yellow

CAN

BCM
(Gateway)

BCM

2)	CAN Failure

ECO

Green

Hard-wired

ECO mode

1)	ECM System

2)	CAN Failure

SPORT

Yellow

Hard-wired

SPORT mode

1)	ECM System

2)	CAN Failure

CRUISE

Green

CAN

ECM

1)	ECM System

2)	CAN Failure

SET

Green

CAN

ECM

1)	ECM System

2)	CAN Failure

AEB

Yellow

CAN

SCC

1)	AEB System

2)	CAN Failure

Cooling water
temperature

Red

CAN

EMS

1)	EMS System

2)	CAN Failure

AUTO STOP

Green
Yellow

CAN

ECM

2)	CAN Failure

LPI

Green

CAN

LPI

1)	LPI System

2)	CAN Failure

Check point (Gauge)

NO	Name	Signal Input	Signal Control (Unit/Sensor)	Check Point
1	Speedometer	C-CAN	ABS/ESC	1. ABS System 2. CAN Line failure
2	Tachometer	C-CAN	ECM	1. ECM 2. CAN Line failure
3	Cooling water temperature	C-CAN	ECM	1. ECM 2. CAN Line failure
4	Fuel	Hardwire	Fuel Sander	1. Fuel sender failure 2. Wiring failure

Diagnosis with KDS/GDS

In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (KDS/GDS).

The diagnostic system (KDS/GDS) provides the following information.

(1)	Self diagnosis : Checking failure and code number (DTC)

(2)	Current data : Checking the system input/output data state

(3)	Actuation test : Checking the system operation condition

(4)	Additional function : Controlling other features including system option setting and zero point adjustment

2.	Select the 'Car model' and the 'Cluster Module (CLU)' to be checked in order to check the vehicle with the tester

3.	Select the 'Current Data' menu to search the current state of the input/output data.

4.	To forcibly actuate the input value of the module to be checked, select option 'Actuation Test'

CLU Variant Coding

After replacing the cluster with a new one, must be performed the “Variant Coding” procedure.

1.	Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel, turn the power on KDS/GDS.

2.	Select model and "BCM".

3.	Select Variant coding mode to perform.

4.	If the trouble codes occurred when performing variant coding, try the CLU variant coding again after checking the installation status of CLU system.

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