Published by Hyundai Motor company, september 2005 Body Control Module

2 ( ) ( Heater Unit ) Location of B C M - T

3 ( Integrated Circuit Module ) ( B C M ) ( Heater Unit ) Location of B C M - I

4 B C M Internal - T Receiver Antenna Power Regulator

5 Electric Characteristic of BCM - T ItemRequirementRemarks Rated voltageDC 12V Rang of operating voltageDC 9 ~ 16V. Rang of operating temp. -30 ~ +80 Conservation range of temperature -40 ~ +85 Use maximum humidity95% Parasite electric current (Dark electric current) Less than 4mA : ETACS & Anti theft controller Less than 3mA : ETACS controller

6 B C M Function - T Defogger Timer Control Intermittent Wiper Control Chime Warning - Seat Belt Warning Control - Seat Belt Reminder Control for NAS - Seat Belt Reminder Control for EU, AUS - ( ) Room Lamp Delay Out & Keyless Unlock Timer Control Tail Lamp Auto Cut Control Door Lock/Unlock control - Central Door Lock Control - Keyless Entry Door Lock/Unlock Control - Horn Answer Back Control - ( ) - Crush Door Unlock Control - Auto Door Lock Control - Auto Door Unlock Control Power Window Timer Control Rear Fog Lamp Control Panic Control Anti-theft Function Control - ( ) - Disarm Function Control - Alarm Function Control

7 B C M Function - I Defogger Timer Control Intermittent Wiper Control Chime Warning - Seat Belt Warning Control - Seat Belt Reminder Control for NAS - Seat Belt Reminder Control for EU, AUS - Key Operated Warning Control Room Lamp Delay Out & Keyless Unlock Timer Control Tail Lamp Auto Cut Control Door Lock/Unlock control - Central Door Lock Control - Keyless Entry Door Lock/Unlock Control - Horn Answer Back Control - Ignition Key Reminder Control - Crush Door Unlock Control - Auto Door Lock Control - Auto Door Unlock Control Power Window Timer Control Rear Fog Lamp Control Panic Control Anti-theft Function Control - Arm Function Control - Disarm Function Control - Alarm Function Control

8 Signal Input & Output Diagram - T Battery (Back-up Voltage) Ignition 1 & 2(Power Voltage) Alternator L Terminal Driver's Door Switch Passenger's Door Switch All Door Switch(4×4) Driver's Door Unlock Switch Passenger's Door Unlock Switch Driver's Door Lock Switch Passenger's Door Lock Switch Rear Door Lock & Unlock Switch(2×2) FRT. INT. Wiper & Washer S/W Wiper Intermittent Volume Switch Seat Belt S/W Defogger Switch Door Warning Switch Hood Switch Vehicle Speed Sensor Tail & Head Lamp Switch Fog lamp S/W (FRT & RR) Crash Sensor Trunk Switch & Trunk Unlock Switch Power source Switch Input Inter Face Lamp Control Door Actuator Relay Control Bugler Alarm Relay Commu- nication IGN. Key Hole Illumination Room Lamp Seat Belt Warning Indicator Door Lock relay Door Unlock Relay Wiper Motor Relay Defogger Relay Chime Bell Power Window Relay RR. Defogger Relay Horn Relay for Alarm Bugler Alarm Relay Hazard Relay Code Saver IGN. Key Hole Illumination Room Lamp Seat Belt Warning Indicator Door Lock relay Door Unlock Relay Wiper Motor Relay Defogger Relay Chime Bell Power Window Relay RR. Defogger Relay Horn Relay for Alarm Bugler Alarm Relay Hazard Relay Code Saver Input Signal B C M Output Actuator

9 Signal Input & Output Diagram Question - T Connect by the line that there is the relation Alternator L Terminal Hood Switch Vehicle Speed Sensor Driver's Door Unlock Switch Passenger's Door Switch Crash Sensor IGN. Key Hole Illumination Room Lamp Hazard Lamp Relay Door Lock relay Door Unlock Relay INT. Wiper Motor Relay Rear Defogger Relay Power Window Relay Code Save Bugler Alarm Relay Hazard Relay Tail Lamp Relay

10 Signal Input & Output Diagram Question - I Alternator L Terminal Hood Switch Vehicle Speed Sensor Driver's Door Unlock Switch Passenger's Door Switch Crash Sensor IGN. Key Hole Illumination Room Lamp Hazard Lamp Relay Door Lock relay Door Unlock Relay INT. Wiper Motor Relay Rear Defogger Relay Power Window Relay Code Save Bugler Alarm Relay Hazard Relay Tail Lamp Relay Connect by the line that there is the relation

11 Signal Input & Output Diagram Question - T What is function related with Key operated warning switch ? ( ) Seat Belt Warning ( ) Tail Lamp Auto Cut Control ( ) Key Operated Warning Control ( ) Ignition Key Reminder Control ( ) Anti-theft Function Control ( ) Crush Door Unlock Control ( ) Power Window Timer Control Write down. What is signal input to BCM for Ignition key reminder function?

12 Signal Input & Output Diagram Question - I What is function related with Key operated warning switch ? ( O ) Seat Belt Warning ( O ) Tail Lamp Auto Cut Control ( O ) Key Operated Warning Control ( O ) Ignition Key Reminder Control ( O ) Anti-theft Function Control ( ) Crush Door Unlock Control ( ) Power Window Timer Control Write down. What is signal input to BCM for Ignition key reminder function? Key operated door warning switch Drivers side door lock switch(Built in drivers door actuator) Drivers side door switch

13 Signal Input & Output Diagram Starting Circuit - T ST IG1 IG2 BATT 12V For M/T Clutch Lock Switch For A/T Inhibitor Switch Start Relay B C M To Start Motor ST Terminal IGN. SW M14-2 Start inhibitor Relay (Burglar Alarm relay ) 5 8 M14-1 A B C D E F G H FromTo

14 Signal Input & Output Diagram Starting Circuit - I FromTo AE BC DH FG ST IG1 IG2 BATT 12V For M/T Clutch Lock Switch For A/T Inhibitor Switch Start Relay B C M To Start Motor ST Terminal IGN. SW M14-2 Start inhibitor Relay (Burglar Alarm relay ) 5 8 M14-1 A B C D E F G H

Published by Hyundai Motor company, september 2005 B C M Function Detail Body Control Module

16 Rear Defogger Timer - T Description for Defogger timer Control 1. Defogger output (include outside mirror heater) should be ON during ( ) minutes, after defogger switch ON when ( ) charging ON. 2. Incase of the defogger switch is ON again while defogger output is ON the defogger (include outside mirror heater) output should be OFF. 3. If the IG. is OFF while defogger output is ON, the defogger(include outside mirror heater) output will be OFF. Rear Defogger Timer Circuit What signal is for the Defogger timer control?

17 Rear Defogger Timer - I Description for Defogger timer Control 1. Defogger output (include outside mirror heater) should be ON during ( 20 ) minutes after defogger switch ON when ( alternator "L" terminal ) is charging ON. 2. Incase of the defogger switch is ON again while defogger output is ON the defogger (include outside mirror heater) output should be OFF. 3. If the IG. is OFF while defogger output is ON, the defogger(include outside mirror heater) output will be OFF. Rear Defogger Timer Circuit What signal is for the Defogger timer control? Alternator L terminal (Lo to Hi) Defogger switch Lo signal Ignition switch ON

18 Seat Belt Warning Control - T Description for seat belt warning control 1. Seat belt warning lamp must blink for ( ) seconds from IG. ON with 0.6 sec. frequency, 50% duty, and chime bell should ring too. 2. If the IG. is turned OFF within 6 seconds, the warning lamp and chime bell output should be OFF. 3. In case of the seat belt switch is ON, the chime bell sound must be stopped immediately, but seat belt warning lamp output should be ON during ( ) seconds Seat belt warning control circuit What signal is for the seat belt warning control? ST IG2 IG1 BATT. 12V B C M ( ) Seat Belt Warning Lamp IGN. Key 7 M M M M M14-1

19 Seat Belt Warning Control - I Description for seat belt warning control 1. Seat belt warning lamp must blink for 6 seconds from IG. ON with 0.6 sec. frequency, 50% duty, and chime bell should ring too. 2. If the IG. is turned OFF within 6 seconds, the warning lamp and chime bell output should be OFF. 3. In case of the seat belt switch is ON, the chime bell sound must be stopped immediately, but seat belt warning lamp output should be ON during 6 seconds What signal is for the seat belt warning control? Ignition ON Seat belt buckle switch ON ST IG2 IG1 BATT. 12V B C M Seat Belt S/W (Buckle switch) Seat Belt Warning Lamp IGN. Key 7 M M M M M14-1 Seat belt warning control circuit

20 Ignition Key Reminder Control - T What is an operation condition of Ignition key reminder control?

21 Ignition Key Reminder Control - I This function is to prevent vehicle from Lock if IG. key is inserted into key cylinder. 1. IG. key is inserted into the key cylinder. 2. The signal of IG. key insert condition is perception in ETACSCM. 3. At this time if pushed door lock knob of front LH or RH door, door unlock signal output for 1 sec. 4. So, that during insert key into the key-cylinder to prevent door lock. What is an operation condition of Ignition key reminder control? 1. Key operated door warning switch is ON(pin No 6 M volts)= Key insert 2. FRT. LH or RH door switch ON (door open= pin No 1 or 11 signal change Hi to Lo of M14-1 connector) 3. FRT. LH or RH door lock switch ON (door lock switch signal ON = pin No 15 or 16 signal change Hi to Lo) 4. Door unlock relay ON (Tr. 2 ON = Lo signal pin No 1 of the M14-2 connector)

22 Intermittent Wiper Circuit - T PCB : Printed Circuit Board

23 Intermittent Wiper Motor Control

24 Room Lamp Delay Control - T 1. Room lamp delay out 1.1 Room lamp must be light ON when the door is opened. (door switch is ON) 1.2 The brightness of room lamp should be reduced to 75% immediately, and be dimmed off gradually till the room lamp is OFF within 5 - 6seconds after the door is closed (door switch is OFF). 1.3 In case of the door open (door switch is ON) time is less than 0.1 second, then this function should not be operated. 2, Room Lamp Delay Out after receive Keyless Unlock signal. 2.1 The room lamp lights OFF after lighting ON about 30 sec on condition that door is closed without ignition key ON. 2.2 The room lamp keeps lighting ON when opening the door, and the room lamp is back to the delay function The room lamp prolongs light ON about 30 sec. again, If the TX unlock button pressed during this condition. 2.4 The room lamp goes OFF immediately and becoming to arm condition if the keyless lock button pressed.

25 Room Lamp Delay Control - T What is condition of room lamp delay control in the BCM. 12V From Battery Room Lamp B C M CPUCPU Receive r All Door Switch Off Room ON M M14-1 2

26 Room Lamp Delay Control - I What is condition of room lamp delay control in the BCM. All Door Switch On to Off Ignition Switch Off Room lamp switch room position Pin No 2 of M12-1 voltage change 12 to 0 Transmitter unlock button signal 12V From Battery Room Lamp B C M CPUCPU Receive r All Door Switch Off Room ON M M14-1 2

27 Tail Lamp Auto Cut - T What is condition of tail lamp auto cut function control in BCM? Related signal for Tail lamp auto cut control Condition(ON or OFF)VoltagePin No 12 volts Battery ( ) 12 volts B C M Battery Tail Lamp Relay Tail Lamp CPUCPU M14-1( ) ( ) M14-2 ( ) M14-1( )

28 Tail Lamp Auto Cut - I 1. In case of the tail lamp switch is turned ON after IG. SW ON or the driver door is opened after IG. SW OFF, the tail lamp is extinguished automatically. 2. In addition, the IG. SW is turned OFF after driver door is opened with IG. SW is ON condition, the tail lamp will be extinguished automatically too. 3 After automatic extinguish, if the tail lamp switch is turned ON again, then, the tail lamp will be ON (illuminating) and the auto cut function will be released. M M M M volts Battery Key operated Door warning switch Tail Lamp Switch Drivers Door Switch 12 volts B C M Battery Tail Lamp Relay Tail Lamp CPUCPU

29 Tail Lamp Auto Cut - I What is condition of tail lamp auto cut function control in BCM? 12 volts Battery ( Key operated Door warning switch ) ( Tail Lamp Switch ) 12 volts B C M Battery Tail Lamp Relay Tail Lamp CPUCPU M14-1 ( 6 ) M14-1 ( 12 ) M14-1 ( 11 ) (15 ) M14-2 ( Drivers Door Switch ) Related signal for Tail lamp auto cut control Condition(ON or OFF)VoltagePin No Key operated Door warning switch ON to Off12 volts to 0 volt6 M14-1 Tail Lamp SwitchON0 volt12 M14-1 Drivers Door SwitchOff to ON0 volt to 12 volts11 M14-1 Tail lamp relay -Off to ON12 volts to 0 volt15 M14-2

30 Keyless Entry & Burglar Alarm Control - T Pin No SignalVolt

31 Keyless Entry & Burglar Alarm Control - I Pin No SignalVolt 2 RR LH/RH Door S/W Rear Door Open : 0 Closed : 12 1 Frt. RH Door Switch Frt. RH Door open : 0 Closed : Frt. LH Door Switch Frt. LH Door open : 0 Closed : RR LH/RH Door Lock/ Unlock Switch Rear Door open : 0 Closed : Frt. Door LH Lock/ Unlock Switch Frt. Door LH Lock : 12 Unlock Switch : 0 16 Frt. Door RH Lock/ Unlock Switch Frt. Door RH Lock : 12 Unlock Switch : 0 17 Hood Switch Hood open : 0 Closed : 12 5 Trunk Unlock Switch Trunk Lock : 12 Unlock : 0 10 Trunk Switch Trunk open : 0 Closed : 12

32 Keyless Entry & Burglar Alarm Control - T Pin No Input Signal Write down related for function of BCM 2 Rear LH/RH Door S/W 1 Front RH Door Switch 11 Front LH Door Switch 14 Rear LH/RH Door Lock/Unlock Switch (Built in Actuator) 15 Front Door LH Lock/Unlock Switch (Built in Actuator) 16 Front Door RH Lock/Unlock Switch (Built in Actuator) 5 Trunk Unlock Switch

33 Keyless Entry & Burglar Alarm Control - I Pin No Input Signal Write down related for function of BCM 2 Rear LH/RH Door S/W - Anti – theft function - Room lamp delay control 1 Front RH Door Switch - Anti – theft function - Room lamp delay control - Key hole illumination control - Tail lamp auto cut function - Power window timer function 11 Front LH Door Switch - Anti – theft function - Room lamp delay control - Key hole illumination control - Tail lamp auto cut function - Power window timer function 14 Rear LH/RH Door Lock/Unlock Switch (Built in Actuator) - Anti-theft function (Arm function) - Auto door lock function 15 Front Door LH Lock/Unlock Switch (Built in Actuator) - Anti-theft function (Arm function) - Central door lock/unlock function - Auto door lock function 16 Front Door RH Lock/Unlock Switch (Built in Actuator) - Anti-theft function (Arm function) - Central door lock/unlock function - Auto door lock function 5 Trunk Unlock Switch - Arm reservation

34 Auto Door Unlock by Air bag Crash Signal - T B C M 12 volts From Battery Door Lock Relay Door Actuator From Battery IGN. S/W MM M M Door Unlock Relay From Battery CPUCPU Air Bag Crash signal Air Bag Module M M M M If the airbag crash signal is inputted to the BCM, when the door is locked, the unlock signal is executed immediately for safety. 2. At this time, all door should be locked for operating above unlock execution. What is condition of auto door unlock function control by air bag crash signal in BCM? How make a ground Pin No1 of M14-2 connector. While operating this function.

35 Auto Door Unlock by Air bag Crash Signal - I B C M 12 volts From Battery Door Lock Relay Door Actuator From Battery IGN. S/W MM M M Door Unlock Relay From Battery CPUCPU Air Bag Crash signal Air Bag Module M M M M If the airbag crash signal is inputted to the BCM, when the door is locked, the unlock signal is executed immediately for safety. 2. At this time, all door should be locked for operating above unlock execution. What is condition of auto door unlock function control by air bag crash signal in BCM? Door lock/unlock switch is lock Pin No M low signal How make a ground Pin No1 of M14-2 connector. While operating this function. 5 seconds

36 Keyless Entry & Burglar Alarm Control Practice - T 1. Application : JB BCM 2. Objectives - To under input & output signal characteristic for Keyless Entry & Burglar Alarm Control of BCM function 3. Required materials - Hi-scan - Digital Multi-meter 4. Procedure - Remove the low crush pad - Remove the BCM - Check the voltage of each pin. 5. Time to complete : 40 min. 6. Reference : [Notice] [Caution] - Do not check the condition of each pin by general test lamp. 7. Practice order 7.1 Measure an input and output signal about related for Keyless Entry & Burglar Alarm Control. 7.2 And, Fill it practice form on next page

37 Keyless Entry & Burglar Alarm Control Practice - I 1. Application : JB BCM 2. Objectives - To understand input & output signal characteristic for Keyless Entry & Burglar Alarm Control of BCM function 3. Required materials - Hi-scan - Digital Multi-meter 4. Procedure - Remove the low crush pad - Remove the BCM - Check the voltage of each pin. 5. Time to complete : 50 min. 6. Reference : [Notice] [Caution] - Do not check the condition of each pin by general test lamp. 7. Practice order 7.1 Measure an input and output signal about related for Keyless Entry & Burglar Alarm Control. 7.2 And, Fill it practice form on next page

38 I C M (Integrated Control Module) - T The hazard relay, bugler alarm relay, and start inhibitor relay built in ICM. ICM location

39 I C M (Integrated Control Module) - T Integrated Control Module Circuit Diagram

40 Charging Circuit

41 Charging Circuit Stator Coil I.C Regulator Field Coil L Terminal B+ Terminal Alternator Hot Cold