Infiniti QX56 (Z62). Manual — part 1078
SBC-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (PRE-CRASH SEAT BELT)
WORK SUPPORT
Monitor item
Description
DOOR OPENING RETRACT RETRY
Changes the number of times for the seat belt retract retry when the door opens.
PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
SBC-13
< ECU DIAGNOSIS INFORMATION >
C
D
E
F
G
I
J
K
L
M
A
B
SBC
N
O
P
ECU DIAGNOSIS INFORMATION
PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
Reference Value
INFOID:0000000006237883
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
Monitor item
Condition
Value/Status
(Approx.)
BUCKLE SW RH
RH seat belt is not fastened
OFF
RH seat belt is fastened
ON
BUCKLE SW LH
RH seat belt is not fastened
OFF
RH seat belt is fastened
ON
VEHICLE DISTANCE
Not activated
OFF
Activated
ON
IGN SW
Ignition switch OFF
OFF
Ignition switch ON
ON
FR DOOR SW RH
LH door close
CLOSE
LH door open
OPEN
FR DOOR SW LH
RH door close
CLOSE
RH door open
OPEN
ABS ACTIVATING
ABS is inactive
OFF
ABS is active
ON
VHCL SPEED
While driving
Equivalent speedometer reading (km/h)
BRK PEDAL SNSR1
Brake released
→
depressed
(1 V
→
4 V)
BRK PEDAL SNSR2
Brake released
→
depressed
(4 V
→
1 V)
STRG ANGLE
Steering wheel: 0
°
(Neutral)
±
2.5 (deg)
Steering wheel: 90
°
(Turned right)
+90 (deg)
Steering wheel: 90
°
(Turned left)
-90 (deg)
STRG ANGLE SPEED
Steering wheel: Being turned
Depending on steering acceleration speed
(deg/s)
INCLINATION JDMT
Vehicle is level
OFF
Vehicle is inclined
ON
PRE-TEN ACTIVTN
Seat belt pre-tensioner is not activated
OFF
Seat belt pre-tensioner is activated
ON
HEAT PROTC RH
RH heat protection is not activated
OFF
RH heat protection is activated
ON
HEAT PROTC LH
LH heat protection is not activated
OFF
LH heat protection is activated
ON
SBC-14
< ECU DIAGNOSIS INFORMATION >
PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
TERMINAL LAYOUT
PHYSICAL VALUES
Fail Safe
INFOID:0000000006237884
• 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 normal condition, the system returns to the normal opera-
tion.
JMHIA0711ZZ
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
1
(Y)
Ground
Power supply
Input
—
Battery voltage
2
(G)
Ground
Brake pedal stroke sensor signal 1
Input
Brake released
→
depressed
1 V - 4 V
4
(P)
Ground
CAN-L
Input/
Output
—
—
6
(LG/R)
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
Output
IGN ON
5 V
9
(–)
Ground
Shield
—
—
—
10
(R)
Ground
Brake pedal stroke sensor power circuit
Output
IGN ON
5 V
12
(B)
Ground
Brake pedal stroke sensor signal 2
Input
Brake released
→
depressed
4 V - 1 V
14
(L)
Ground
CAN-H
Input/
Output
—
—
16
(W)
Ground
Local Communication Line 1
Input/
Output
—
—
17
(W)
Ground
Brake pedal stroke sensor ground circuit
—
—
0 V
18
(B)
Ground
Ground
—
—
0 V
19
(W)
Ground
Motor drive circuit power supply
Input
—
Battery voltage
20
(B)
Ground
Motor drive circuit ground
—
—
0 V
PRE-CRASH SEAT BELT CONTROL UNIT (DRIVER SIDE)
SBC-15
< ECU DIAGNOSIS INFORMATION >
C
D
E
F
G
I
J
K
L
M
A
B
SBC
N
O
P
*
1
: The deactivation mode differs depending on the internal malfunctioning condition of control unit
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
• A part of comfort function
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
• A part of comfort function
U1000
CAN communication circuit
Stops the operation in the conditions as per the following. *
1
• During emergency brake operation
• When ABS continuously 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
B2451
SEAT BLT MTR DR CIRC
Fully deactivates the whole operation.
B2452
SEAT BLT MTR AS CIRC
Deactivates a part of comfort function.
B2453
BR_STROKE_SEN_CIRC
Stops the operation in the conditions as per the following.
• During emergency brake operation
• When ABS continuously operates
• A part of comfort function
B2454
SEAT BLT PWR DR CIRC
Fully deactivates the whole operation.
B2455
CONTROL UNIT DR
Stops the operation in the conditions as per the following. *
1
• During emergency brake operation
• When ABS continuously 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
Deactivates a part of comfort function.
B2457
CONTROL UNIT AS
Deactivates a part of comfort function.
B2458
LOCAL COMM
Deactivates a part of comfort function.
B2461
VHCL SPEED SIGNAL
Stops the operation in the conditions as per the following.
• During emergency brake operation
• When ABS continuously operates
• When lateral slippage during cornering occurs
• When steering wheel is rotated for emergency
• When the vehicle inclined excessively
• When comfort function operates
B2463
ROLLOVER SIGNAL
Stops the operation in the conditions as per the following.
• When the vehicle inclined excessively
• A part or the whole comfort function
B2466
DR/AS CONTROL UNIT
Deactivates a part of comfort function.
B2470
SYS HEAT PROTC DR
• 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
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