Infiniti M35/M45 Y50. Manual — part 1039
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PRE-CRASH SEAT BELT
SB-27
C
D
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SB
3.
CHECK SEAT BELT MOTOR RH
Check continuity between pre-crash seat belt motor RH.
OK or NG
OK
>> Replace pre-crash seat belt control unit.
NG
>> Replace pre-crash seat belt motor RH.
Check Brake Pedal Stroke Sensor Shield Wire Circuit
NHS0008G
1.
CHECK PRE-CRASH SEAT BELT INPUT SIGNAL
With CONSULT-II
Select “B PEDAL SIG1 and 2” on DATA MONITOR screen, and then
make sure that the voltage does not change if brake pedal is not
operated.
NOTE:
Diagnosis should be performed with engine running, audio and air
conditioner operating.
Without CONSULT-II
1.
Start engine.
2.
Check voltage between pre-crash seat belt harness connector.
OK or NG
OK
>> Brake pedal stroke sensor shield wire circuit is OK.
NG
>> Check shield wire for damage. Repair or replace if necessary.
Pre-crash seat belt
motor RH connector
Terminal Continuity
B422
1
2
Yes
PHIA1139E
B PEDAL SIG1
Brake released
:There is no change in the voltage
value, and it is almost constant
B PEDAL SIG2
Brake released
:There is no change in the voltage
value, and it is almost constant.
Terminal
Condition
Voltage (V)
(Approx.)
(+)
(–)
Pre-crash seat
belt control unit
connector
Terminal
B142
16
Ground
Performed with
engine running, audio
and air conditioner
operating and brake
pedal released.
There is no
change in the
voltage value,
and it is almost
constant
20
PHIA0766E
PHIA1141E
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SB-28
PRE-CRASH SEAT BELT
Removal and Installation of Pre-Crash Seat Belt Control Unit
NHS0008H
REMOVAL
1.
Remove trunk side finisher LH. Refer to
EI-56, "Removal and Installation for Trunk Room Trim"
2.
Remove pre-crash seat belt control unit mounting bolts.
3.
Remove pre-crash seat belt control unit connector, and the pre-
crash seat belt control unit.
INSTALLATION
Install in the reverse order of removal.
PHIA1125E
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SEAT BELTS
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SEAT BELTS
PFP:86884
System Description
NHS0008I
SEAT BELT WARNING CHIME
●
With ignition switch turned ON and seat belt unfastened (seat belt switch ON), warning chime will sound
for approximately 6 seconds.
●
If warning chime does not sound, refer to
DI-73, "Seat Belt Buckle Switch Signal Inspection"
.
SEAT BELT WARNING LAMP
●
Fasten driver's seat belt.
●
The seat belt warning lamp should go out.
●
If the seat belt warning lamp does not go out, refer to
DI-42, "Wiring Diagram — WARN —"
Removal and Installation of Front Seat Belt
NHS0008J
CAUTION:
Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least 3
minutes.
REMOVAL OF SEAT BELT RETRACTOR
1.
Remove the outer anchor.
●
Remove the belt tension sensor cover and cover protector (passenger side only).
●
Disconnect the belt tension sensor connector (passenger side only).
●
Remove the fixing bolt of the outer anchor.
1.
Outer anchor
2.
Shoulder anchor
3.
Pre-tensioner seat belt retractor
4.
Belt tension sensor cover (passen-
ger side only)
5.
Cover protector (passenger side
only)
6.
Belt tension sensor connector (pas-
senger side only)
7.
Anchor bolt
8.
Anchor nut
9.
Seat belt pre-tensioner connector
10. Pre-crash seat belt connector
11.
Bolt
12. Seat belt adjuster
PHIA1106E
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SB-30
SEAT BELTS
2.
Remove the shoulder anchor.
●
Remove the center pillar lower and upper garnishes, refer to
.
●
Remove the fixing anchor nut of the shoulder anchor.
3.
Remove the seat bert assembly.
●
Disconnect the seat belt pre-tensioner connector.
CAUTION:
●
For installing/removing seat belt pre-tensioner connec-
tor, insert thin screwdriver wrapped in tape into notch,
lift lock and remove connector.
●
Install connector with lock raised, and push lock into
connector.
●
Disconnect the pre-crush seat belt connector (for only the vehicle with pre-clash seat belt).
●
Remove the fixing screw and anchor bolt of the pre-tensioner seat belt retractor.
INSTALLATION OF SEAT BELT RETRACTOR
●
Install in the reverse order of removal.
●
Tighten by specified torque.
REMOVAL OF SEAT BELT BUCKLE
Remove the seat belt buckle.
●
Remove the front seat from vehicle, refer to
(For ease of tool operation in narrow space).
●
Disconnect the seat belt buckle harness connector.
●
Remove the fixing anchor bolt of the seat belt buckle.
INSTALLATION OF SEAT BELT BUCKLE
●
Install in the reverse order of removal.
●
Tighten by specified torque.
PHIA0953J
Tightening torque
: 49.0 N·m (5.0 kg-m, 36 ft-lb)
PHIA0926J
Tightening torque
: 49.0 N·m (5.0 kg-m, 36 ft-lb)
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