Page 4313 of 5598

SBC-16
< ECU DIAGNOSIS INFORMATION >
PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
DTC Index
INFOID:0000000006237885
DTC Trouble diagnosis name
(CONSULT-III display) DTC detection condition Reference
U0126 STRG ANG SEN SIG Steering angle sensor malfunction is received SBC-33
U0428 STRG ANGL CAL Steering angle sensor calibration incomplete signal is receivedSBC-34
U1000 CAN COMM CIRCUITPre-crash seat belt control unit cannot transmit and receive CAN
communication signal for 2 seconds or more SBC-35
B2451 SEAT BLT MTR DR CIRC Motor or control unit malfunction
Seat belt motor circuit is open or shorted
SBC-36
B2452 SEAT BLT MTR AS CIRC Motor or control unit malfunction
Seat belt motor circuit is open or shorted SBC-37
B2453 BR_STROKE_SEN_CIRC
Brake pedal stroke sensor malfunction
Brake pedal stroke sensor circuit is open or shorted SBC-38
B2454 SEAT BLT PWR DR CIRC Motor power su
pply circuit is open or shortedSBC-41
B2455 CONTROL UNIT DR Malfunction in pre-crash seat belt control unit SBC-42
B2456 SEAT BLT PWR AS CIRC Motor power supply circuit is open or shortedSBC-43
B2457 CONTROL UNIT AS Malfunction in pre-crash seat belt control unit SBC-44
B2458 LOCAL COMM Local communication line open or shortedSBC-45
B2461 VHCL SPEED SIGNAL Vehicle speed signal malfunction is received SBC-47
B2463 ROLLOVER SIGNAL Rollover signal malfunction is received SBC-48
B2466 DR/AS CONTROL UNIT Control unit is out of the vehicle specificationSBC-49
B2470 SYS HEAT PROTC DRDeactivation for cooling to prevent system heating due to continuous
operation SBC-50
B2471 SYS HEAT PROTC ASDeactivation for cooling to prevent system heating due to continuous
operation
SBC-51
Revision: 2010 May2011 QX56
Page 4314 of 5598

PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
SBC-17
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G
I
J
K L
M A
B
SBC
N
O P
PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
Reference ValueINFOID:0000000006237886
TERMINAL LAYOUT
PHYSICAL VALUES
Fail SafeINFOID:0000000006237887
When a system malfunction is detected, deactivates a part of the system or all functions depending on the
malfunctioning part.
When the malfunction condition recovers to the norma l condition, the system returns to the normal opera-
tion.
JMHIA0711ZZ
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(Y) Ground Power supply Input — Battery voltage
6
(LG/B) Ground Seat belt buckle switch signal Input Seat belt is fastened 0 V
Seat belt is unfastened 5 V
8
(G) Ground Local Communication Line 2 Input/
Output IGN ON 5 V
9
(–) Ground Shield — — —
16
(W) Ground Local Communication Line 1
Input/
Output ——
18
(B) Ground Ground — — 0 V
19
(W) Ground Motor passenger circuit power supply Input — Battery voltage
20
(B) Ground Motor passenger circuit ground — — 0 V
Display contents of CONSULT-III Fail-safe
U0126 STRG ANG SEN SIG Stops the operation in the conditions as per the following.
When lateral slippage during cornering occurs
When steering wheel is rotated for emergency
U0428 STRG ANGL CAL Stops the operation in the conditions as per the following.
When lateral slippage during cornering occurs
When steering wheel is rotated for emergency
Revision: 2010 May2011 QX56
Page 4315 of 5598

SBC-18
< ECU DIAGNOSIS INFORMATION >
PRE-CRASH SEAT BELT CONTROL UNIT (PASSENGER SIDE)
*1: The deactivation mode differs depending on the internal malfunctioning condition of control unit
U1000 CAN communication circuit
Stops the operation in the conditions as per the following. *
1
During emergency brake operation
When ABS continuo
usly operates
When lateral slippage during cornering occurs
When Intelligent brake assistance operates
When steering wheel is rotated for emergency
When the vehicle inclined excessively
A part or the whole comfort function
B2452 SEAT BLT MTR AS CIRC Fully deactivates the whole operation.
B2453 BR_STROKE_SEN_CIRC Stops the operation in the conditions as per the following.
During emergency brake operation
When ABS continuo
usly operates
B2455 CONTROL UNIT DR Stops the operation in the conditions as per the following. *
1
During emergency brake operation
When ABS continuo
usly operates
When lateral slippage during cornering occurs
When Intelligent brake assistance operates
When steering wheel is rotated for emergency
When the vehicle inclined excessively
A part or the whole comfort function
B2456 SEAT BLT PWR AS Fully deactivates the whole operation.
B2457 CONTROL UNIT AS Fully deactivates the whole operation.*
1
B2458 LOCAL COMM
Fully deactivates the whole operation.*1
B2461 VHCL SPEED SIGNALStops the operation in the conditions as per the following.
During emergency brake operation
When ABS continuo
usly operates
When lateral slippage during cornering occurs
When steering wheel is rotated for emergency
When the vehicle inclined excessively
A part or the whole comfort function
B2463 ROLLOVER SIGNAL When the vehicle inclined excessively
B2466 DR/AS CONTROL UNIT Stops the operation in the conditions as per the following.
During emergency brake operation
When ABS continuo
usly operates
When lateral slippage during cornering occurs
When steering wheel is rotated for emergency
When the vehicle inclined excessively
A part or the whole comfort function
B2471 SYS HEAT PROTC AS Fully deactivates the whole operation.
Operation return
- 1 time operation becomes possible after approximately 30 seconds
- Returns to the initial condition after approximately 8 minutes
Display contents of CONSULT-III Fail-safe
Revision: 2010 May2011 QX56
Page 4316 of 5598
PRE-CRASH SEAT BELT SYSTEMSBC-19
< WIRING DIAGRAM >
C
DE
F
G
I
J
K L
M A
B
SBC
N
O P
WIRING DIAGRAM
PRE-CRASH SEAT BELT SYSTEM
Wiring DiagramINFOID:0000000006237888
JCHWM0714GB
Revision: 2010 May2011 QX56
Page 4317 of 5598
SBC-20
< WIRING DIAGRAM >
PRE-CRASH SEAT BELT SYSTEM
JCHWM0715GB
Revision: 2010 May2011 QX56
Page 4318 of 5598
PRE-CRASH SEAT BELT SYSTEMSBC-21
< WIRING DIAGRAM >
C
DE
F
G
I
J
K L
M A
B
SBC
N
O P
JCHWM0716GB
Revision: 2010 May2011 QX56
Page 4319 of 5598
SBC-22
< WIRING DIAGRAM >
PRE-CRASH SEAT BELT SYSTEM
JCHWM0717GB
Revision: 2010 May2011 QX56
Page 4320 of 5598
PRE-CRASH SEAT BELT SYSTEMSBC-23
< WIRING DIAGRAM >
C
DE
F
G
I
J
K L
M A
B
SBC
N
O P
JCHWM0718GB
Revision: 2010 May2011 QX56