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Home >> Kia >> 2017 >> Forte5 EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Body Control Module (BCM)) >> Description And Operation >> Function
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Description And Operation: Function

WARNING: This page is about a different car, the 2018 Kia Forte5 and 2018 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.
Function Description
Input Output
Front Washer & Wiper - IGN2 On & WasherS/W On and Off - Controlling Wiper Rly for 2.5-3.8 Sec.
Front INT Wiper - IGN2 On & Front Wiper Int S/W On - Controlling Wiper Rly On/Off with 2.2-10 Sec. period depending on INT_Volume (5Step)
Front MIST Wiper - IGN2 On & Mist S/W On - Controlling Wiper Rly On during Mist S/W On (700mSec.)
DRV Seatbelt Reminder - IGN On while belt off - Seat Belt Indicator blinking and buzzer warning for 6 Sec.
- IGN On while belt on - Seat Belt Indicator for 6 SEC. and warning buzzer Off
- IGN1 On & Drv sea belt SW [Off→On] - Seat Belt Indicator Off and Buzzer Off
- IGN On & Vehicle Speed > 10km/h while belt off - Seat Belt Indicator and warning buzzer pattern starting (PATTERN: 6 Sec. on/24Sec. off X 11times)
- IGN On & Vehicle Speed > 5km/h while belt off - Seat Belt Indicator blinking and buzzer warning for 6 Sec.
- Pattern starting while Vehicle Speed < 5km/h - 6 Sec. after Seat Belt Indicator Off and Buzzer Off
Key Operated Warning - (Key In or SMK ACC) S/W On & Driver door open - Key Operated Buzzer Warning starting
Parking Start Warning - IGN1 On & Parking Brake S/W On & Vehicle Speed > 5km/h - Parking Brake Buzzer Warning Starting
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/Safety
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
- less than 30 Sec. after IGN1 turned off, and Drv Door Open - Power window/Safty Power Window disable immediately
Rear Defogger/Front Deicer - IGN1 On & Alternator On & Defogger S/W On - Defogger On & Deicer On for 20 min.
Room Lamp - 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 Illumination - 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 S/W On - Key Solenoid On
ATM Shift Lock - IGN1 On & Inhibit P On & Brake S/W On - ATMSOL On
Tail Lamp - Tail lamp S/W On - Tail Lamp On
Tail Lamp Auto Cut - Key In & Tail S/W On → Key Off → Drv Door Open - Tail Lamp Off
- key In & Tail S/W On → Key Off → Drv Door Open → Tail S/W [Off→On] - Tail Lamp On
Auto Light - IGN1 On & Autolight S/W On with day light condition - Tail lamp Off, Headlamp Off
- IGN1 On & Autolight S/W On with night light condition - Tail lamp On, Headlamp On
- IGN1 on & Autolight S/W on with day light condition → night light condition - 12 Sec. after sensing night light condition, Tail lamp On and Headlamp On
- IGN1 on & Autolight S/W on with night light condition → day light condition - 12 Sec. after sensing day light condition, Tail lamp Off and Headlamp Off
Head Lamp - IGN2 On & Headlamp S/W On - Head Lamp On
Escort - IGN2 On, HeadLamp S/W On → IGN Off - Head Lamp On & Tail Lamp On for 5min.
- IGN2 On, HeadLamp S/W On → IGN Off → Driver Door Open → Drive Door Close - Head Lamp On for 15Sec., and Tail Lamp On for 15Sec.
Welcome - Headlamp S/W On & All Door Closed & All Door Locked & Key Off & TX Unlock - Headlamp On & Tail lamp On for 15 Sec.
- Headlamp S/W On & All Door Closed & All Door Locked & Key Off & TX Unlock → TX Lock before 15 Sec. timer expires - Headlamp Off just after TX Lock
- Autolight S/W On & night light condition & All Door Closed & All Door Locked & Key Off & TX Unlock - Headlamp On & Tail lamp On for 15Sec.
DRL - IGN2 On & Alternator On and DRL Option On & H/Lamp S/W Off & Front fog Off - DRL On
- IGN2 On & Alternator On and DRL Option On & Tail lamp S/W Off - DRL On
- IGN2 On & Alternator On and DRL Option On & Tail lamp S/W [Off→On] - DRL Off
Front Fog Lamp - Front Fog S/W On when IGN2 On & Tail lamp On - Front Fog Lamp on
Rear Fog Lamp - Rear Fog S/W On when IGN2 On & Tail Lamp On & Front Fog Lamp On - Rear Fog Lamp on
- Rear Fog S/W On when IGN2 On & Tail Lamp On & HeadLamp On - Rear Fog Lamp on
Puddle Lamp/Pocket Lamp - SMK Option & Tx Unlock - Puddle Lamp On
  - SMK Option & 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 S/W On or Tx Lock - All Door Lock
  - P/WDW Unlock S/W On or Tx Unlock - All Door Unlock
Key Reminder - Key On & Driver/Assist door Open & P/WDW Lock S/W 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 not [P] → [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 S/W On - Tailgate Release
  - Passive Tailgate signal received - Tailgate Release
Two Turn Unlock - Tx Unlock & Tx Unlock It Again after 4Sec. - Drv Door Knob Unlock
  - Tx Unlock & Tx Unlock It Again in 4Sec. - All Door Knob Unlock
Security Indicator - Tx Lock & after 30Sec. (Burglar Alarm State - ARM) - 0.32Sec. On/2Sec. Off
Outside Mirror Auto Folding/Unfolding - Pwdw Mirror S/W Auto Position & Tx Unlock - Mirror Unfold
  - Pwdw Mirror S/W Auto Position & Tx Lock - Mirror Fold
Sunroof Open - SunRoof Open State → IGN Off → Drv Door Open - SunRoof Open Warning By Cluster 7Sec.
Navigation Wake up - Key Out & Tx Unlock/Passive Unlock received - Navigation Wake up Signal sends
    - No re-send within 1 min.
Anti Theft - 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
Horn Answer Back - Tx Lock & Tx Lock It Again in 4Sec. - Horn On (0.1Sec.)