Hyundai Sonata: Body Control Module (BCM). Schematic Diagrams - BCM (Body Control Module) - Body Electrical System - Hyundai Sonata YF 2011-2018 Service ManualHyundai Sonata: Body Control Module (BCM). Schematic Diagrams

BCM Connector Terminals

BCM Input Signal SPEC
No
Input signal name
Logic state
ON/OFF voltage
recognition level (V)
Remarks
A01
B+
ON = Battery
9V ~ 16V
 
A02
IGN1
ON = Battery (IGN KEY is ON or START position)
7V or more / 4V or less
 
A03
IGN2
ON = Battery
(IGN KEY is ON position)
7V or more / 4V or less
 
A04
Brake switch
ON = Battery (Starting state)
7V or more / 4V or less
 
A05
Mist switch
ON = Battery
7V or more / 4V or less
 
A06
Crash unlock input
-
-
PWM
A07
Head lamp low switch
OPEN = GND
2V or less / OPEN
(Reference value:4V or more)
 
A08
Head lamp high switch
OPEN = GND
2V or less / OPEN
(Reference value:4V or more)
 
B03
Front fog lamp switch
OPEN = GND
2V or less / OPEN
(Reference value:4V or more)
 
A13
ACC
ON = Battery
7V or more / 4V or less
 
A16
INH 'R' switch
ON = Battery
7V or more / 4V or less
 
A18
Wiper INT volume
-
-
A/D
A23
Key inter lock switch
ON = GND
2V or less / OPEN
(Reference value:4V or more)
 
A21
Key in switch
ON = GND
2V or less / OPEN
(Reference value:4V or more)
 
A22
Tail lamp switch
ON = GND
2V or less / OPEN
(Reference value:4V or more)
 
B01
LIN (RPAS)
-
-
Communi
cation
B11
Auto light signal
-
-
A/D
B13
Auto light switch
ON = GND
2V or less / OPEN
(Reference value:4V or more)
 
B14
Diagnosis (K-Line)
-
-
Communi
cation
B15
Rear defogger switch
ON = GND
2V or less / OPEN
(Reference value:4V or more)
 

Pin Arrangement

Connector A
No.
Signal Label
Signal Definition
A01
B+
Battery
A02
IGN1
Local ignition1 input in BCM
A03
IGN2
Local ignition2 input in BCM
A04
Brake switch
Brake switch
A05
Mist switch
Mist switch
A06
Crash unlock input
(PWM)
Crash unlock input from airbag
A07
Head lamp low switch
Head lamp low switch
A08
Head lamp high switch
Head lamp high switch
A09
-
-
A10
-
-
A11
-
-
A12
-
-
A13
ACC
Local ACC input in BCM
A14
-
-
A15
-
-
A16
INHIBIT 'R' switch
INHIBIT 'R' switc-h-
A17
Washer switch
Washer switch
A18
Wiper INT switch
Wiper INT switch
A19
-
-
A20
Wiper INT volume
Wiper INT volume
A21
Key in switch
Key in switch
A22
Tail lamp switch
Tail lamp switch
A23
Key inter lock switch
Key inter lock switch
A24
GND (Signal)
Signal ground

Connector B
No.
Signal Label
Signal Definition
B01
LIN (RPAS)
LIN Communication
B02
-
-
B03
Front fog lamp switch
Front fog lamp switch
B04
Parking brake switch
Parking brake switch
B05
-
-
B06
-
-
B07
AV tail
AV tail
B08
CAN high
CAN high
B09
CAN low
CAN low
B10
GND (Auto light)
Auto light ground
B11
Auto light signal
Auto light signal
B12
Auto light power
Auto light power
B13
Auto light switch
Auto light switch
B14
Diagnosis (K-Line)
K-line communication
B15
Defogger switch
Defogger switch
B16
Assist seat belt indicator LED
Assist seat belt indicator LED
B17
Security indicator LED
Security indicator LED
B18
-
-
B19
Head lamp low signal
Head lamp low signal
B20
Speed IMS
Speed state to IMS

Connector C
No.
Signal Label
Signal Definition
C01
Safety power window enable high
Safety power window enable high
C02
Key in state IMS
Key in state to IMS
C03
-
-
C04
Room lamp
Room lamp
C05
-
-
C06
Key SOL
Key solenoid
C07
ATM SOL
ATM solenoid
C08
Glove box switch
Glove box switch
C09
Key hole illumination
Lamp LED
Key hole illumination
Lamp LED
C10
-
-
C11
Glove box lamp
Glove box lamp
C12
-
-
C13
-
-
C14
Wiper relay
Wiper relay
C15
-
-
C16
Head lamp washer relay
Head lamp washer relay
C17
-
-
C18
GND (POWER)
Power ground


Circuit Diagram


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