BODY CONTROL MODULE (BCM) INSPECTION
id094000003900
L.H.D.
1. Remove the front scuff plate. (LH) (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
2. Remove the front side trim. (LH) (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
3. Remove the driver-side lower panel. (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)
4. Remove the auto leveling control module (with headlight auto leveling system). (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)
5. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference). (See Terminal Voltage Table (Reference).)
R.H.D.
1. Remove the front scuff plate.(LH) (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
2. Remove the front side trim.(LH) (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
3. Remove the blower unit. (See BLOWER UNIT REMOVAL/INSTALLATION.)
4. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference). (See Terminal Voltage Table (Reference).)
am2zzw00007930
|
Terminal Voltage Table (Reference)
Terminal |
Signal |
Connected to |
Measurement condition |
Voltage (V) |
Inspection item(s) |
|
---|---|---|---|---|---|---|
1A
|
Power supply
|
HAZARD 15 A fuse
|
Under any condition
|
B+
|
HAZARD 15 A fuse
|
|
1B
|
Power supply
|
• ROOM 25 A fuse
• INTERIOR 15 A fuse
|
Under any condition
|
B+
|
• ROOM 25 A fuse
• INTERIOR 15 A fuse
|
|
1C
|
—
|
—
|
—
|
—
|
—
|
|
1D*1
|
Brake light control
|
Brake light relay
|
Body control module (BCM) simulation item STOP_LMP_CTL is on
|
1.0 or less
|
Brake light relay
|
|
Body control module (BCM) simulation item STOP_LMP_CTL is off
|
B+
|
|||||
1E
|
Rear turn light (RH) control
|
• Rear turn light (RH)
• Side turn light (RH)
|
Ignition is switched ON (engine off or on)
|
Turn switch is in right turn position
|
1.0 or less ↔ B+
|
• Rear turn light (RH)
• Side turn light (RH)
|
Turn switch is in position other than above
|
1.0 or less
|
|||||
1F
|
—
|
—
|
—
|
—
|
—
|
|
1G
|
Rear turn light (LH) control
|
• Rear turn light (LH)
• Side turn light (LH)
|
Ignition is switched ON (engine off or on)
|
Turn switch is in left turn position
|
1.0 or less ↔ B+
|
• Rear turn light (LH)
• Side turn light (LH)
|
Turn switch is in position other than above
|
1.0 or less
|
|||||
1H
|
Interior light power supply
|
Front map light
|
Under any condition
|
B+
|
Front map light
|
|
1I
|
—
|
—
|
—
|
—
|
—
|
|
1J
|
—
|
—
|
—
|
—
|
—
|
|
1K
|
Ground
|
Body ground
|
Under any condition
|
1.0 or less
|
Body ground
|
|
1L
|
Ground
|
Body ground
|
Under any condition
|
1.0 or less
|
Body ground
|
|
2A
|
Lock input (front door lock-link switch (driver's side))
|
Front door latch and lock actuator (driver's side)
|
Driver's door is locked
|
1.0 or less
|
Front door latch and lock actuator (driver's side)
|
|
Driver's door is unlocked
|
Approx. 10
|
|||||
2B
|
Unlock input (front door lock-link switch (driver's side))
|
Front door latch and lock actuator (driver's side)
|
Driver's door is locked
|
Approx. 9.5
|
Front door latch and lock actuator (driver's side)
|
|
Driver's door is unlocked
|
1.0 or less
|
|||||
2C
|
CAN_L
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2D
|
CAN_H
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2E
|
Rear door latch switch (LH) signal
|
Rear door latch and lock actuator (LH)
|
Rear door (LH) is open
|
1.0 or less
|
Rear door latch and lock actuator (LH)
|
|
Rear door (LH) is closed
|
Approx. 9.5
|
|||||
2F
|
Rear door latch switch (RH) signal
|
Rear door latch and lock actuator (RH)
|
Rear door (RH) is open
|
1.0 or less
|
Rear door latch and lock actuator (RH)
|
|
Rear door (RH) is closed
|
Approx. 9.5
|
|||||
2G
|
Front door latch switch (passenger's side) signal
|
Front door latch and lock actuator (passenger's side)
|
Front door (passenger's side) is open
|
1.0 or less
|
Front door latch and lock actuator (passenger's side)
|
|
Front door (passenger's side) is closed
|
Approx. 9.0
|
|||||
2H
|
Front door latch switch (driver's side) signal
|
Front door latch and lock actuator (driver's side)
|
Front door (driver's side) is open
|
1.0 or less
|
Front door latch and lock actuator (driver's side)
|
|
Front door (driver's side) is closed
|
Approx. 9.5
|
|||||
2I
|
Serial communication
|
Power window main switch
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2J
|
Serial communication
|
Start stop unit
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2K*2
|
Door lock switch signal
|
Door lock switch (RH)
|
Door lock switch is turned to unlock side (driver’s side or passenger’s side)
|
1.0 or less
|
Door lock switch (RH)
|
|
Door lock switch is turned to lock side (driver’s side or passenger’s side)
|
Approx. 1.25
|
|||||
Other
|
Approx 5.0
|
|||||
2L
|
Front door key cylinder switch signal
|
Front door latch and lock actuator (driver’s side)
|
Door key cylinder is turned to unlock side
|
1.0 or less
|
Front door latch and lock actuator (driver’s side)
|
|
Door key cylinder is turned to lock side
|
Approx. 1.25
|
|||||
Other
|
Approx 5.0
|
|||||
2M*3
|
Lock input (front door lock-link switch (passenger's side), rear door lock-link switch)
|
• Front door latch and lock actuator (passenger's side)
• Rear door latch and lock actuator (driver's side), (passenger's side)
|
Passenger’s door or rear seat door is unlocked
|
1.0 or less
|
• Front door latch and lock actuator (passenger's side)
• Rear door latch and lock actuator (driver's side), (passenger's side)
|
|
Passenger’s door and rear seat door are locked
|
B+
|
|||||
2N
|
Rear seat belt switch (LH) signal
|
Rear buckle switch (LH)
|
Insert rear seat belt (LH) into buckle
|
1.0 or less
|
Rear buckle switch (LH)
|
|
Rear seat belt (LH) not inserted into buckle
|
B+
|
|||||
2O
|
Rear seat belt (center) switch signal
|
Rear center buckle switch
|
Insert rear seat belt (center) into buckle
|
1.0 or less
|
Rear center buckle switch
|
|
Rear seat belt (center) not inserted into buckle
|
B+
|
|||||
2P
|
Rear seat belt switch (RH) signal
|
Rear buckle switch (RH)
|
Insert rear seat belt (RH) into buckle
|
1.0 or less
|
Rear buckle switch (RH)
|
|
Rear seat belt (RH) not inserted into buckle
|
B+
|
|||||
2Q
|
Fuel sensor signal
|
Fuel gauge sender unit
|
Inspect fuel gauge sender unit and related wiring harness because determination based on terminal voltage is not possible.
|
|||
2R
|
Fuel sensor ground
|
Fuel gauge sender unit
|
Under any condition
|
1.0 or less
|
Fuel gauge sender unit
|
|
2S
|
• Liftgate unlatch switch signal (5HB)
• Trunk unlatch switch signal (5HB)
|
• Liftgate opener switch (5HB)
• Trunk lid opener switch (exterior) (4SD)
|
• Liftgate is opened (5HB)
• Trunk is opened (4SD)
|
1.0 or less
|
• Liftgate opener switch (5HB)
• Trunk lid opener switch (exterior) (4SD)
|
|
• Liftgate is closed (5HB)
• Trunk is closed (4SD)
|
Approx. 4.5
|
|||||
2T
|
—
|
—
|
—
|
—
|
—
|
|
2U
|
—
|
—
|
—
|
—
|
—
|
|
2V
|
—
|
—
|
—
|
—
|
—
|
|
2W*3
|
LIN communication
|
Theft-deterrent siren
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2X
|
—
|
—
|
—
|
—
|
—
|
|
2Y
|
LIN communication
|
Electrical supply unit (ESU)
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2Z*1
|
Brake switch signal
|
• Start stop unit
• Brake switch (No.1 signal)
|
Brake pedal is depressed
|
B+
|
• Start stop unit
• Brake switch (No.1 signal)
|
|
Brake pedal is not depressed
|
1.0 or less
|
|||||
2AA*10
|
PTC heater communication
|
PTC heater
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
2AB*1
|
Brake light control
|
• Brake light relay
• Brake light (LH), (RH)
• High-mount brake light
• Condenser
|
Brake pedal is depressed
|
B+
|
• Brake light relay
• Brake light (LH), (RH)
• High-mount brake light
• Condenser
|
|
Brake pedal is not depressed
|
1.0 or less
|
|||||
2AC
|
• Liftgate latch switch signal (5HB)
• Trunk lid latch switch signal (4SD)
|
• Liftgate latch and lock actuator (5HB)
• Trunk lid latch and release actuator (4SD)
|
• Liftgate is opened (5HB)
• Trunk is opened (4SD)
|
1.0 or less
|
• Liftgate latch and lock actuator (5HB)
• Trunk lid latch and release actuator (4SD)
|
|
• Liftgate is closed (5HB)
• Trunk is closed (4SD)
|
Approx. 9.5
|
|||||
2AD
|
—
|
—
|
—
|
—
|
—
|
|
2AE
|
—
|
—
|
—
|
—
|
—
|
|
2AF
|
—
|
—
|
—
|
—
|
—
|
|
3A
|
Front turn light (RH) control
|
Front turn light (RH)
|
Ignition is switched ON (engine off or on)
|
Turn switch is in right turn position
|
1.0 or less ↔ B+
|
Front turn light (RH)
|
Turn switch is in position other than above
|
1.0 or less
|
|||||
3B
|
Front turn light (LH) control
|
Front turn light (LH)
|
Ignition is switched ON (engine off or on)
|
Turn switch is in left turn position
|
1.0 or less ↔ B+
|
Front turn light (LH)
|
Turn switch is in position other than above
|
1.0 or less
|
|||||
3C
|
CAN_H
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
3D
|
CAN_L
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
3E
|
Blower motor relay control
|
• Blower relay
• HEATER 40 A fuse
|
Ignition is switched ON (engine off or on)
|
Blower motor is operated using fan switch
|
1.0 or less
|
• Blower relay
• HEATER 40 A fuse
|
Blower motor is turned off by pressing climate control unit OFF button
|
B+
|
|||||
3F
|
Windshield wiper INT relay control
|
Wiper INT relay
|
Ignition is switched ON (engine off or on)
|
Windshield wiper switch is in position other than OFF
|
1.0 or less
|
Wiper INT relay
|
Windshield wiper switch is in OFF position
|
B+
|
|||||
3G
|
Windshield wiper motor (HI) control
|
Wiper HI relay
|
Ignition is switched ON (engine off or on)
|
Windshield wiper switch is in HIGH position
|
1.0 or less
|
Wiper HI relay
|
Windshield wiper switch is in OFF position
|
B+
|
|||||
3H
|
Horn relay control
|
Horn relay
|
Ignition is switched ON (engine off or on)
|
Horn switch is on
|
1.0 or less
|
Horn relay
|
Horn switch is off
|
B+
|
|||||
3I*3
|
Front fog light relay control
|
Front fog light relay
|
Ignition is switched ON (engine off or on)
|
Front fog light switch is on
|
1.0 or less
|
Front fog light relay
|
Front fog light switch is off
|
B+
|
|||||
3J
|
Head light cleaner relay control
|
• Head light cleaner relay
• H/CLEAN 20 A fuse
|
Ignition is switched ON (engine off or on)
|
Connect the M-MDS and turn on the "H/L_CLN_RY" using the body control module (BCM) simulation function
|
1.0 or less
|
• Head light cleaner relay
• H/CLEAN 20 A fuse
|
Connect the M-MDS and turn off the "H/L_CLN_RY" using the body control module (BCM) simulation function
|
B+
|
|||||
3K
|
Rear window defogger relay control
|
Rear window defogger relay
|
Ignition is switched ON (engine off or on)
|
Rear window defogger switch is on
|
1.0 or less
|
Rear window defogger relay
|
Rear window defogger switch is off
|
B+
|
|||||
3L*4
|
Burglar horn relay control
|
Theft-deterrent relay
|
Ignition is switched ON (engine off or on)
|
Horn switch is on
|
B+
|
Theft-deterrent relay
|
Horn switch is off
|
1.0 or less
|
|||||
3M
|
Autostop switch signal
|
Windshield wiper motor
|
Ignition is switched ON (engine off or on)
|
Windshield wipers are stopped in position other than park
|
1.0 or less
|
Windshield wiper motor
|
Windshield wipers are stopped in park position
|
B+
|
|||||
3N
|
Power supply
|
• ENG+B 7.5 A fuse
• ROOM 25 A fuse
|
Under any condition
|
B+
|
• ENG+B 7.5 A fuse
• ROOM 25 A fuse
|
|
3O
|
Ignition power supply
|
METER1 10 A fuse
|
Ignition is switched ON (engine off or on)
|
B+
|
METER1 10 A fuse
|
|
The ignition is switched off (LOCK)
|
1.0 or less
|
|||||
3P
|
—
|
—
|
—
|
—
|
—
|
|
3Q*5
|
Washer fluid level sensor signal
|
Washer fluid level sensor
|
Ignition is switched ON (engine off or on)
|
Washer fluid level sensor is less than MIN (washer fluid level sensor on)
|
1.0 or less
|
Washer fluid level sensor
|
Washer fluid level sensor is MIN or more (Washer fluid level sensor off)
|
B+
|
|||||
3R
|
Brake fluid level sensor signal
|
Brake fluid level sensor
|
Ignition is switched ON (engine off or on)
|
Brake fluid level sensor is less than MIN (brake fluid level sensor on)
|
1.0 or less
|
Brake fluid level sensor
|
Brake fluid level sensor is MIN or more (brake fluid level sensor off)
|
B+
|
|||||
3S
|
LIN communication
|
Current sensor
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
3T
|
Horn switch control
|
Horn switch
|
Ignition is switched ON (engine off or on)
|
Horn switch is on (long press)
|
1.0 or less
|
Horn switch
|
Horn switch is off
|
B+
|
|||||
3U
|
Trunk unlatch switch signal (interior)
|
Trunk lid opener switch (interior)
|
Trunk lid opener switch (interior) is on (trunk lid opener switch (interior) is pressed)
|
1.0 or less
|
Trunk lid opener switch (interior)
|
|
Trunk lid opener switch (interior) is off (trunk lid opener switch (interior) is not pressed)
|
B+
|
|||||
3V*7
|
LIN communication
|
DC-DC converter
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
3W
|
Hood latch switch signal
|
Hood latch switch
|
Hood is open
|
Approx. 9.0
|
Hood latch switch
|
|
Hood is closed
|
1.0 or less
|
|||||
3X
|
LIN communication
|
• Auto-light sensor/rain sensor*8
• Theft-deterrenet sensor*9
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|