TUCSON(LM) >2012 > G 2.4 DOHC > Body Electrical System > BCM (Body Control Module) > Body Control Module (BCM)>Repair procedures  
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater & A/C controller from center facia panel.
(Refer to BD group - "Controller")
3.
Remove the front seat heater switch assembly.
(Refer to BE group - "Seat electrical")
4.
Remove the right air vent.
(Refer to BE group - "Rear Glass Defogger")
5.
Loosen the nut and bolt from BCM.

6.
Insert the hand to right air vent hole to disconnect the BCM connectors.
And then remove the BCM (A) from the heater & A/C controller hole.

Installation
1.
Install the BCM and connect the connectors.
2.
Install the right air vent.
3.
Install the front seat heater switch assembly.
4.
Install the heater & A/C controller from center facia panel.
Inspection
BCM Pin Information

Connector (A/B/C)
No
Descrition
No
Descrition
No
Descrition
A01
B+ (Signal)
B01
LIN (RPAS)
C01
Safety Power Window Enable Low
A02
IGN1
B02
Head Lamp Low Switch
C02
Security Indicator
A03
IGN2
B03
Head Lamp High Switch (PASSING)
C03
AV Unlock Signal
A04
Turn Signal Left Switch
B04
-
C04
Key Solenoid
A05
Turn Signal Right Switch
B05
DIAGNOSIS (K-LINE)
C05
Room Lamp
A06
Inhibit ’R’Switch
B06
RL Seat Warmer Switch
C06
FL Turn Signal
A07
Crash Unlock
B07
RR Seat Warmer Switch
C07
FR Turn Signal
A08
Auto Light Power
B08
CAN-High
C08
RL Turn Signal
A09
-
B09
CAN-Low
C09
RR Turn Signal
A10
-
B10
Auto Light GND
C10
B+ (Power1)
A11
Hazard Switch
B11
Auto Light Switch
C11
B+ (Power2)
A12
ALT L
B12
Front Fog Lamp Switch
C12
GND (Power)
A13
ACC
B13
Rear Fog Lamp Switch
C13
RPAS OFF Indicator
A14
Rear Washer Switch
B14
Front Deicer Switch
C14
Hazard Switch Indicator
A15
Rear Wiper ON Switch
B15
RR Defogger Switch
C15
N.C
A16
Rear Wiper INT Switch
B16
RPAS OFF Switch
C16
Assist S/BELT Indicator
A17
Front Washer Switch
B17
-
C17
Key Hole Illumination (BULB)
A18
Front INT Wiper Switch
B18
-
C18
RPAS Buzzer 
A19
MIST Switch
B19
Auto Light Signal
C19
AV Tail Signal
A20
Wiper Voulume
B20
H/Lamp Low Signal
C20
Flasher Sound Relay
A21
Key In Switch
 
C21
Front Wiper Relay
A22
Tail Lamp Switch
C22
RR Fog Lamp Relay
A23
Key Inter Lock Switch
C23
RR Seat Warmer Relay
A24
GND (Signal)
C24
RL Seat Warmer Relay

Input Signal Specification
No
Input Signal Name
Logic State
On/off Voltage
Recognition Level(V)
Remarks
1
A_B+ (Signal)
ON = BAT
9V~16V
 
2
A_B+ (Power1)
ON = BAT
9V~16V
 
3
A_B+ (Power2)
ON = BAT
9V~16V
 
4
L_IGN1
ON = BAT
(IGN KEY is ON or START position)
8V or more /4V or less
 
5
L_INH’R’ SW
ON = BAT
8V or more /4V or less
 
6
L_IGN2
ON = BAT (IGN KEY is ON position)
8V or more /4V or less
 
7
L_FRT INT WIPER SW
ON = BAT 
8V or more /4V or less
 
8
L_FRT WASHER SW
ON = BAT 
8V or more /4V or less
 
9
L_MIST SW
ON = BAT 
8V or more /4V or less
 
10
L_RR WIPER_INT SW
ON = BAT 
8V or more /4V or less
 
11
L_RR WIPER_ON SW
ON = BAT 
8V or more /4V or less
 
12
L_RR WASHER SW
ON = BAT 
8V or more /4V or less
 
13
A_ALT'L'
ON = BAT  (Starting State)
8V or more /4V or less
 
14
L_ACC
ON = BAT
8V or more /4V or less
 
15
L_TurnSignal Left SW
ON = BAT 
8V or more /4V or less
 
16
L_TurnSignal Right SW
ON = BAT 
8V or more /4V or less
 
17
L_Key Inter Lock SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
18
L_KEY IN SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
19
L_Tail Lamp SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
20
L_EC HeadLampType
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
21
L_Hazard SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
22
L_Front Fog Lamp SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
23
L_HeadLamp LOW SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
24
L_HeadLamp HIGH SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
25
L_Rear Fog Lamp SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
26
L_RL SeatWarmer SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
27
L_RR SeatWarmer SW
OPEN = GND
2V or less /OPEN
(Reference:7.7V or more)
 
28
L_FRONT DEICER SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
29
L_REAR DEFOGGER SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
30
L_RPAS OFF SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
31
L_Auto Light SW
ON = GND
2V or less /OPEN
(Reference:7.7V or more)
 
 
32
A_Auto Light Signal
-
-
A/D
33
A_Wiper Int Volume
-
-
A/D
34
L_CRASH UNLOCK INPUT
(PWM)
-
-
PWM
35
LIN_RPAS
-
-
Communication
36
CAN_HIGH
-
-
Communication
37
CAN_LOW
-
-
Communication
38
DIAGNOSIS (K-Line)
-
-
Communication

Trouble Diagnostics When Using GDS
1.
The IPM can be diagnosed by using the GDS. The BCM communicates with the GDS which then displays inputs and outputs along with codes.
2.
To diagnose the IPM function, select the vehicle model and IPM.

3.
To consult the present input/out value of IPM, "Current DATA". It provides information of IPM input/output conditions of power supply, turn signal/brake lamp, headlamp, door locks, outside mirror, wiper, auto-light and transmitters etc.

4.
To perform functional test on IPM outputs, select "Actuation Test"