Kia Carens: BCM (Body Control Module) / Description and operation

Kia Carens RP (2013-2018) Service Manual / Body Electrical System / BCM (Body Control Module) / Description and operation

Description
Communication Network Diagram

Function
Function
Description
Input
Output
FRONT WASHER INTER LOCK WIPER
- IGN2 On & WasherSW On and  Off,
- Controlling Wiper Rly depending on WasherSW On time.
FRONT INT WIPER
- IGN2 On & Front Wiper Int Sw On,
- Controlling Wiper Rly On/Off with 2.2~10 sec period depending on INT_Volume ( 5Step )
FRONT MIST WIPER
- IGN2 On & MistSW On,
- Controlling Wiper Rly On during MistSw On (700msec)
Head Lamp Washer
- IGN2 On & Head Lamp On & WasherSW On
- Controlling HeadLamp Washer Rly On (1.6sec) 
- Within 15 minutes after the headlamp relay turns on, the headlamp washer does not function again even though the windshield/headlamp washer switch is operated repeatedly.
REAR WASHER INTER LOCK WIPER
- IGN2 On & REARWasherSW On and  Off,
- Controlling Wiper Rly depending on REARWasherSW On time.
REAR INT WIPER
- IGN2 On & Front Wiper Int Sw On,
- Controlling Wiper Rly On/Off with 6 sec period depending on INT_Volume ( 1Step )
SEAT BELT  WARNING 
- IGN1 On while driver seat belt On,
- Seat Belt Indicator blinking for 6 sec.
- IGN1 On while driver seat belt On,
- Seat Belt Buzzer On for 6 sec. and Seat Belt Indicator blinking On until driver seat belt On.
DRV SEATBELT REMINDER 
- IGN On while belt off,
- Seat Belt Indicator On until belt on
- IGN On while belt on,
- Seat Belt Indicator On for 6 sec.
- IGN On & Vehicle Speed > 6km/h while belt off,
- Seat Belt Indicator On
- IGN On & Vehicle Speed > 9km/h while belt off,
- Seat Belt Indicator blinking
- IGN On & Vehicle Speed > 20km/h while belt off,
- Seat Belt Indicator blinking and buzzer warning starting(100sec)
- when IGN On & Vehicle Speed > 20km/h while belt [on→off]
- Seat Belt Indicator blinking and buzzer warning starting(100sec)
- when Vehicle Speed > 20km/h & belt Off and Seatbelt Indicator Blinking and buzzer warning, belt On,
- Seat Belt Indicator Off and Buzzer Off
DRV SEATBELT REMINDER 
- IGN On while belt off,
- Seat Belt Indicator On until belt on
- IGN On while belt on,
- Seat Belt Indicator On for 6 sec.
- IGN On & Vehicle Speed > 6km/h while belt off,
- Seat Belt Indicator On
- IGN On & Vehicle Speed > 9km/h while belt off,
- Seat Belt Indicator blinking
- IGN On & Vehicle Speed > 20km/h while belt off,
- Seat Belt Indicator blinking and buzzer warning starting(100sec)
- when IGN On & Vehicle Speed > 20km/h while belt [on→off]
- Seat Belt Indicator blinking and buzzer warning starting(100sec)
- when Vehicle Speed > 20km/h & belt Off and Seatbelt Indicator Blinking and buzzer warning, belt On,
- Seat Belt Indicator Off and Buzzer Off
 KEY OPERATED WARNING
- (Key In or SMK ACC) Sw On & Driver door open
- Key Operated Buzzer Warning starting
PARKING START WARNING
- IGN1 On & Parking Brake Sw On & Vehicle Speed > 5km/h & 1sec
- Parking Brake Buzzer Warning Starting
SUNROOF OPEN
- SunRoof Open State → IGN Off → Drv Door Open
- SunRoof Open Warning By Cluster 7sec
PAS/RPAS WARNING
- Gear Position R and PAS/RPAS Sensors detecting warning
- PAS/RPAS Warning Starting according to warning level from PAS/RPAS Sensors
POWER WINDOW / SAFTY E POWER WINDOW
- IGN1 On
- Power Window/Safty Power Window enable all the time
- IGN1 Off
- 30sec. After IGN 1 turned off, Power Window/ Safty Power Window disable
- Driver Door Open or Passenger Door Open
- Power window/Safty Power Window disable immediately
REAR DEFOGGER FRONT DEICER
- IGN1 On & Alternator On & Defogger SW On
- Defogger On & Deicer On for 20 min.
ROOMLAMP
- Any Door Open,
- Room Lamp On for 20min.
- All Door Closed & Key [On→Off] & Any Door Unlock
- Room Lamp On for 30sec.
- All Door Closed & Key [On→Off] & All Door Lock
- Room Lamp Off
- Tx Unlock
- Room Lamp On for 30sec.
- Tx Lock while Room Lamp On
- Room Lamp Off
IGN KEY HOLL ILLUMINAION
- IGN1 Off & Door open
- Key Illumi Lamp On for 20min.
- IGN1 Off & Door [open→close]
- Key Illumi Lamp On for 30sec.
 KEY INTER LOCK
- IGN1 On or ACC On & Key inter lock Sw On
- Key Solenoid On
 ATM SHIFT LOCK 
- IGN1 On & Inhibit P On & Brake Sw On
- ATMSOL On
TAILLAMP
- Tail lamp Sw On,
- Tail Lamp On
TAIL LAMP AUTO CUT
- Key In & Tail Sw On → Key Off → Drv Door Open
- Tail Lamp Off
- key In & Tail Sw On → Key Off → Drv Door Open → Tail Sw [Off→On]
- Tail Lamp On
AUTOLIGHT
- IGN1 On & Autolight Sw On with day light condition
- Tail lamp Off, Headlamp Off
- IGN1 On & Autolight Sw On with night light condition
- Tail lamp On, Headlamp On
- IGN1 on & Autolight Sw on with day light condition → night light condition
- 1sec(CHINA), 12sec(NA), 2.5sec(etc). after sensing night light condition, Tail lamp On and Headlamp On
- IGN1 on & Autolight Sw on with night light condition → day light condition
- 5sec(EC), 12sec(NA), 2.5sec(etc). after sensing day light condition, Tail lamp Off and Headlamp Off
HEADLAMP
- IGN2 On & Headlamp Sw On
- Head Lamp On
ESCORT
- IGN2 On, HeadLamp Sw On → IGN Off
- Head Lamp On & Tail Lamp On for 5min.
- IGN2 On, HeadLamp Sw On → IGN Off → Driver Door Open → Drive Door Close
- Head Lamp On for 15sec, and  Tail Lamp On for 15sec.
WELCOME
- Headlamp SW On & All Door Closed & All Door Locked & Key Off & TX Unlock
- Headlamp On & Tail lamp On for 15 sec.
- Headlamp SW On & All Door Closed & All Door Locked & Key Off & TX Unlock → TX Lock before 15 sec timer expirsed
- Headlamp Off just after TX Lock
- Autolight Sw On & night light condition & All Door Closed & All Door Locked & Key Off & TX Unlock
- Headlamp On & Tail lamp On for 15sec.
Dedicated DRL 
- IGN2 On & Alternator On and DRL Option On & H/Lamp Sw Off & Front fog Off
- DRL On
- IGN2 On & Alternator On and DRL Option On & [ Head Lamp  On or FrtFog Lamp On]
- DRL Off
FRONT  FOG LAMP
- Front Fog Sw On when IGN2 On & Tail lamp On
- Front Fog Lamp on
REAR FOG LAMP
- Rear Fog Sw On when IGN2 On & Tail Lamp On & Front Fog Lamp On
- Rear Fog Lamp on
- Rear Fog Sw On when IGN2 On & Tail Lamp On & HeadLamp On
- Rear Fog Lamp on
 PUDDLE LAMP
- Tx UnLock
- Puddle Lamp On
- Tx Lock
- Puddle Lamp Off
AV CONTROL
- Autolight sensing with day light condition
- AV Tail On
- Autolight sensing with night light condition
- AV Tail Off
CENTRAL LOCK/UNLOCK
- P/WDW Lock Sw On or  Tx Lock
- All Door Lock
- P/WDW Unlock Sw On or  Tx  Unlock
- All Door Unlock
Key Reminder
- Key On & Driver/Assist  door Open & P/WDW Lock Sw On
- All Door Unlock. If knob keeps being in lock, BCM retries unlock 3 times
- Key On & Driver/Assist Door Open & Driver/Assist Knob changes unlock → lock
- All Door Unlock. If knob keeps being in lock, BCM retries unlock 3 times
Passive Reminder
- Passive Reminder signal received from SMK
- All Door Unlock and Buzzer warning starts
CRASH UNLOCK
- Key On & Crash Signal received,
- All Door Unlock for 5 sec.
Speed Sensing Auto door Lock
- IGN1 On & Alternator On & Any Door Unlock & Vehicle Speed >15km/h,
- All Door Lock 
- IGN1 On & Alternator On & Vehicle Speed >15km/h & All Door Lock → Any Door unlock,
- All Door Lock 
Shift-Lever Auto door Unlock
- IGN1 On & Alternator On & Shift-Lever Position [P] → not [P]
- All Door Unlock 
Key Off AUTO DOOR UNLOCK
- Any Door Lock & Key [In] → [Off]
- All Door Unlock
TAIL GATE RELEASE
- All Door Unlock & Tail Gate Open Sw On
- Tailgate Release 
- Passive Tailgate signal received
- Tailgate Release 
 SECURITY INDICATOR 
- Tx Lock & after 30sec ( Burglar Alarm State – ARM )
- 0.32sec On / 2sec Off 
OUTSIDE MIRROR AUTO FOLDING / UNFOLDING
- Pwdw Mirror SW Auto Position & Tx Unlock
- Mirror Unfold
- Pwdw Mirror SW Auto Position & Tx Lock
- Mirror Fold
NaviWakeup
- Key Out & Tx Unlock/Passive Unlock received,
- Navigation Wakeup Signal sends 
- No re-send within 1 min.
ANTITHEFT
- All Door Closed & Key Off & Tx Lock & All Door Closed,
- Armwait for 30 sec. 
- Arm after 30 sec. without any interrupts
- [Arm state] Door open without Tx unlock/Passive Unlock signal
- Horn activates, Hazard lamp blinks
PANIC
- Tx Panic
- Horn activates, Hazard lamp blinks

Schematic diagrams
Circuit Diagram ...

Repair procedures
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