BODY CONTROL MODULE (BCM) INSPECTION [(US)]
BODY CONTROL MODULE (BCM) INSPECTION [(US)]
SM2566439
id0940000039x1
1.Remove the front side trim (LH). (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
2.Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference) (See Terminal Voltage Table (Reference).).
-
• If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
-
― If the system does not work normally even though the inspection items are normal, identify the malfunctioning location according to the directions in [DIAGNOSTIC SYSTEM] and [SYMPTOM TROUBLESHOOTING] then perform repairs.
-
am3zzw00024800
|
Terminal Voltage Table (Reference)
|
Terminal |
Signal |
Connected to |
Measurement condition |
Voltage (V) |
Inspection item(s) |
|
|---|---|---|---|---|---|---|
|
1A
|
B_DCDC
|
• F16 15A fuse
• MAIN 200A fuse
|
Under any condition
|
B+
|
• F16 15A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
1B
|
B1_LIMPHOME
|
• F22 15A fuse
• MAIN 200A fuse
|
Under any condition
|
B+
|
• F22 15A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
1C
|
BATT4 WASTE
|
• F29 15A fuse
• MAIN 200A fuse
|
Under any condition
|
B+
|
• F29 15A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
1D
|
B2 ROOM
|
• F50 15A fuse
• F27 25A fuse
• MAIN 200A fuse
|
Under any condition
|
B+
|
• F50 15A fuse
• F27 25A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
1E
|
—
|
—
|
—
|
—
|
—
|
|
|
1F
|
WASHER_MOTTR_R
|
Washer motor
|
Ignition is switched ON (engine off or on)
|
Rear washer switch is on
|
B+
|
• Washer motor
• Related wiring harness
|
|
Rear washer switch is off
|
1.0 or less
|
|||||
|
1G
|
GND_WASHER
|
• Windshield wiper motor
• Body ground
|
Under any condition
|
1.0 or less
|
• Windshield wiper motor
• Related wiring harness
|
|
|
1H
|
WASHER_MOTTR_F
|
Washer motor
|
Ignition is switched ON (engine off or on)
|
Front washer switch is on
|
B+
|
• Washer motor
• Related wiring harness
|
|
Front washer switch is off
|
1.0 or less
|
|||||
|
2A
|
CAN_H_AF
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2B
|
CAN_L_AR
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2C
|
CAN_L_AF
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2D
|
CAN_H_AR
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2E *1
|
CAN_H_AF2
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2F
|
CAN_L_PT
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2G *1
|
CAN_L_AF2
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2H
|
CAN_H_PT
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2I
|
—
|
—
|
—
|
—
|
—
|
|
|
2J
|
CAN_L_BODY
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2K
|
HORN RLY
|
Horn relay
|
Ignition is switched ON (engine off or on)
|
Horn switch is on
|
1.0 or less
|
• Horn relay
• Related wiring harness
|
|
Horn switch is off
|
B+
|
|||||
|
2L
|
CAN_H_BODY
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2M
|
R DEF RLY
|
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
• Related wiring harness
|
|
Rear window defogger switch is off
|
B+
|
|||||
|
2N
|
—
|
—
|
—
|
—
|
—
|
|
|
2O
|
—
|
—
|
—
|
—
|
—
|
|
|
2P
|
LIN2
|
Humidity sensor /Solar radiation sensor /Auto light sensor /Rain sensorr
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2Q
|
—
|
—
|
—
|
—
|
—
|
|
|
2R
|
IG1_RELAY
|
• IG1 relay No.1
• IG1 relay No.2
|
Ignition is switched ON
|
B+
|
• IG1 relay No.1
• IG1 relay No.2
• Related wiring harness
|
|
|
Except above.
|
1.0 or less
|
|||||
|
2S
|
HOOD_SW
|
Hood latch switch
|
Hood is open
|
B+
|
• Hood latch switch
• Related wiring harness
|
|
|
Hood is closed
|
1.0 or less
|
|||||
|
2T
|
ST_RELAY
|
Starter relay
|
When cranking
|
B+
|
• Starter relay
• PCM
• Related wiring harness
|
|
|
Except above *3
|
1.0 or less, or B+ *3
|
|||||
|
2U
|
CLT_OR_INH_MONITOR
|
MTX
• Starter interlock switch
ATX
• TCM
• PCM
|
MTX
• Starter interlock switch is on
ATX
• Parking or Neutral position
|
1.0 or less
|
MTX
• Starter interlock switch
• Related wiring harness
ATX
• TCM
• PCM
• Related wiring harness
|
|
|
Except above
|
B+
|
|||||
|
2V
|
ACC_RELAY
|
ACC relay
|
Ignition is switched ON or ACC (engine off or on)
|
B+
|
• ACC relay
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
2W
|
WASHER_LEVEL_SW
|
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
• Related wiring harness
|
|
Washer fluid level sensor is MIN or more (Washer fluid level sensor off)
|
B+
|
|||||
|
2X
|
SSB_2
|
Push button start
|
Push button start pressed
|
1.0 or less
|
• Push button start
• Related wiring harness
|
|
|
Push button start not pressed
|
B+
|
|||||
|
2Y
|
GND_SIG2
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
|
2Z
|
—
|
—
|
—
|
—
|
—
|
|
|
2AA
|
BUZ_N
|
Keyless beeper
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2AB
|
BUZ_P
|
Keyless beeper
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
2AC
|
—
|
—
|
—
|
—
|
—
|
|
|
2AD
|
SRLY_MONITOR
|
• Starter relay
• PCM
|
Ignition is switched ON (engine off)
|
MTX
• Clutch pedal released
ATX
• Selector lever position is not P or N position
|
B+
|
• Starter relay
• PCM
• Related wiring harness
|
|
MTX
• Clutch pedal depressed
ATX
• Selector lever position is P or N position
|
1.0 or less
|
|||||
|
2AE
|
ACC_MONITOR
|
• F44 30A fuse
• F18 15A fuse
• ACC relay
• MAIN 200A fuse
|
Ignition is switched OFF
|
1.0 or less
|
• F44 30A fuse
• F18 15A fuse
• ACC relay
• MAIN 200A fuse
• Related wiring harness
|
|
|
Ignition is switched ON (engine off or on) or ACC
|
B+
|
|||||
|
2AF
|
IG1_MONITOR
|
• IG1 RELAY No.2
• F49 15A fuse
• MAIN 200A fuse
|
Ignition is switched ON (engine off or on)
|
B+
|
• IG1 RELAY No.2
• F49 15A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
3A
|
F_SPEAKER_N
|
Notification and warning speaker (front)
|
Ignition is switched ON
|
Approx 6.0
|
• Notification and warning speaker (front)
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
3B
|
F_SPEAKER_P
|
Notification and warning speaker (front)
|
Ignition is switched ON
|
Approx 6.0
|
• Notification and warning speaker (front)
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
3C
|
—
|
—
|
—
|
—
|
—
|
|
|
3D
|
—
|
—
|
—
|
—
|
—
|
|
|
3E
|
—
|
—
|
—
|
—
|
—
|
|
|
3F
|
—
|
—
|
—
|
—
|
—
|
|
|
3G
|
OUT_F
|
• Forward sensing camera (FSC)
• Driver monitoring camera unit
|
Under any condition
|
B+
|
• Forward sensing camera (FSC)
• Driver monitoring camera unit
• Related wiring harness
|
|
|
3H
|
SSB_1
|
Push button start
|
Push button start pressed
|
1.0 or less
|
• Push button start
• Related wiring harness
|
|
|
Push button start not pressed
|
B+
|
|||||
|
3I
|
—
|
—
|
—
|
—
|
—
|
|
|
3J
|
SSB_AMBER
|
Push button start
|
Ignition switched to ACC or ON (engine off)
|
1.0 or less
|
• Status (amber)
• Related wiring harness
|
|
|
Except above
|
B+
|
|||||
|
3K
|
SSB_GREEN
|
Push button start
|
Engine starting conditions are met
|
1.0 or less
|
• Status (green)
• Related wiring harness
|
|
|
Except above
|
B+
|
|||||
|
3L
|
SSB_ILLUMI
|
Push button start
|
Determination using terminal voltage inspection is not possible.
|
—
|
||
|
3M
|
SECURITY_IND
|
Instrument cluster
|
Security indicator LED turns on
|
1.0 or less
|
• Instrument cluster
• Related wiring harness
|
|
|
Security indicator LED turns off
|
B+
|
|||||
|
3N
|
—
|
—
|
—
|
—
|
—
|
|
|
3O
|
LIN1
|
Electrical supply unit
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3P
|
LIN3
|
• Front map light
• Indicator unit
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3Q
|
—
|
—
|
—
|
—
|
—
|
|
|
3R
|
—
|
—
|
—
|
—
|
—
|
|
|
3S
|
CAN_L_DIAG
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3T
|
CAN_H_DIAG
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3U *2
|
CAN_L_DCM
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3V *2
|
CAN_H_DCM
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3W
|
CAN_L_VEHICLE
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
3X
|
CAN_H_VEHICLE
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4A
|
R_SPEAKER_P
|
Notification and warning speaker (rear)
|
Ignition is switched ON
|
Approx 6.0
|
• Notification and warning speaker (rear)
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
4B
|
R_SPEAKER_N
|
Notification and warning speaker (rear)
|
Ignition is switched ON
|
Approx 6.0
|
• Notification and warning speaker (rear)
• Related wiring harness
|
|
|
Ignition is switched OFF
|
1.0 or less
|
|||||
|
4C
|
GND_SPEAKER1
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
|
4D
|
GND_SPEAKER2
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
|
4E
|
R_DOOR_SW_R
|
Rear door latch and lock actuator (RH)
|
Rear door latch switch is open
|
1.0 or less
|
• Rear door latch and lock actuator (RH)
• Related wiring harness
|
|
|
Rear door latch switch is closed
|
B+
|
|||||
|
4F
|
R_LOCK_LINK_SW
|
• Rear door latch and lock actuator (LH)/(RH)
|
The passenger-side and rear doors are all locked
|
B+
|
• Rear door latch and lock actuator (LH)/(RH)
• Related wiring harness
|
|
|
Among the passenger-side and rear doors, at least one door is unlocked
|
1.0 or less
|
|||||
|
4G
|
P_RANGE_SW
|
• Selector leve componentr
|
Parking position
|
B+
|
• Selector lever component
• Related wiring harness
|
|
|
Except above
|
1.0 or less
|
|||||
|
4H
|
F_DOOR_SW_R
|
Door-electrical supply unit (Passenger’s-side)
|
Front door (driver’s side) is open
|
1.0 or less
|
• Door-electrical supply unit (Passenger’s-side
• Related wiring harness
|
|
|
Front door (driver’s side) is closed
|
Approx 9.5
|
|||||
|
4I
|
SERIAL_LFU
|
LF control unit
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4J
|
TRUNK_UNLATCH_SW
|
• Trunk lid opener switch(4SD)
• Liftgate opener switch(5HB)
|
• Trunk lid opener switch is off (4SD)
• Liftgate opener switch is off (5HB)
|
B+
|
• Trunk lid opener switch(4SD)
• Liftgate opener switch(5HB)
• Related wiring harness
|
|
|
• Trunk lid opener switch is on (4SD)
• Liftgate opener switch is on (5HB)
|
1.0 or less
|
|||||
|
4K
|
—
|
—
|
—
|
—
|
—
|
|
|
4L
|
—
|
—
|
—
|
—
|
—
|
|
|
4M
|
CAN_L_AF_T
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4N
|
CAN_H_AF_T
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4O
|
—
|
—
|
—
|
—
|
—
|
|
|
4P
|
—
|
—
|
—
|
—
|
—
|
|
|
4Q
|
CAN_L_IVI
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4R
|
CAN_H_IVI
|
CAN system related module
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
|||
|
4S
|
GND_ESCL_LOCK
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
|
4T
|
GND_SIG1
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
|
4U
|
OUT_R
|
Parking assist unit (optical)/ 360° view monitor control module
|
Under any condition
|
B+
|
• Parking assist unit (optical)/ 360° view monitor control module
• Related wiring harness
|
|
|
4V
|
—
|
—
|
—
|
—
|
—
|
|
|
4W
|
BATT3_ESCL
|
• F22 7.5A fuse
• F28 25A fuse
• MAIN 200A fuse
|
Under any condition
|
B+
|
• F22 7.5A fuse
• F28 25A fuse
• MAIN 200A fuse
• Related wiring harness
|
|
|
4X
|
STOP_LAMP_SW
|
• Electrical supply unit
• Brake switch
|
Brake pedal not depressed
|
1.0 or less
|
• Electrical supply unit
• Brake switch
• Related wiring harness
|
|
|
Brake pedal depressed
|
B+
|
|||||
*1:With forward sensing camera (FSC)
*2:With telematics communication unit
*3:Because the voltage varies depending on the vehicle conditions, examination using the terminal voltage inspection is not possible.