2007 INFINITI M35 Factory Service Manual

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INFINITI M35 2007 Factory Service Manual SB-12
PRE-CRASH SEAT BELT
Revision: 2007 April2007 M35/M45
THWT0205E

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INFINITI M35 2007 Factory Service Manual PRE-CRASH SEAT BELT
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Pre-Crash Seat Belt Control UnitNHS00083
Work FlowNHS00084
1. Check the symptom a

PRE-CRASH SEAT BELT
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Terminals and Reference Value for Pre-Crash Seat Belt Control UnitNHS00083
Work FlowNHS00084
1. Check the symptom and customer's requests.
2. Understand the system description. Refer to SB-3, "
System Description" .
3. Perform the preliminary check. Refer to SB-15, "
Preliminary Check" .
4. Check the self-diagnosis, results using CONSULT-II. Refer to SB-14, "
CONSULT-II Function (PRECRASH
SEATBELT)" .
5. Based on the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SB-15,
"Diagnoses Symptom Chart" .
6. Does pre-crash seat belt system operate normally?
OK: GO TO 7.
NG: GO TO 4.
7. INSPECTION END
TerminalWire
ColorItemSignal
Input/OutputConditionVo l ta g e [V ]
(Approx.)
1G/RSeat belt motor RH release
direction signalOutputSeat belt motor RH operation Battery voltage
Other than above 0
2 W Power source (BAT) Input — Battery voltage
3G/YSeat belt motor RH fastened
direction signalOutputSeat belt motor RH operation Battery voltage
Other than above 0
4GY/WSeat belt motor LH fastened
direction signalOutputSeat belt motor LH operation Battery voltage
Other than above 0
5 B/Y Ground (Driver circuit) — — 0
6L/YSeat belt motor LH release
direction signalOutputSeat belt motor LH operation Battery voltage
Other than above 0
7 G/Y Seat belt indicator signal OutputWhen driver side seat belt is fastened Battery voltage
When driver side seat belt is un-fastened 0
When driver side seat belt is fastened and
system malfunctionBattery
voltage ⇔ 0
8 LG Seat belt buckle switch RH InputWhen seat belt is fastened 5
When seat belt is un-fastened 0
10 SB Seat belt buckle switch LH InputWhen seat belt is fastened Battery voltage
When seat belt is un-fastened 0
13 W/G Power source (IGN) Input Ignition switch ON or START Battery voltage
16 WBrake pedal stroke sensor
output signal 1OutputBrake pedal is fully released operation 1
Brake pedal is slightly depressed operation 4
18 RPower source
(Brake pedal stroke sensor)Input — 5
20 GBrake pedal stroke sensor
output signal 2OutputBrake pedal is fully released operation 4
Brake pedal is slightly depressed operation 1
21 BGround
(Brake pedal stroke sensor)—— 0
22 P CAN-L Input/Output — —
24 L CAN-H Input/Output — —
25 — Ground (Shield wire) — — 0
26 B/Y Ground (Control circuit) — — 0

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INFINITI M35 2007 Factory Service Manual SB-14
PRE-CRASH SEAT BELT
Revision: 2007 April2007 M35/M45
CONSULT-II Function (PRECRASH SEATBELT)NHS00085
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

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INFINITI M35 2007 Factory Service Manual PRE-CRASH SEAT BELT
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Preliminary CheckNHS00086
PRE-CRASH SEAT BELT OPERATION INSPECTION
WARNING:
The following tests should be performe

PRE-CRASH SEAT BELT
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Preliminary CheckNHS00086
PRE-CRASH SEAT BELT OPERATION INSPECTION
WARNING:
The following tests should be performed in a safe, open place that is free of traffic and obstacles.
The tests should be performed on a dry, paved road. Do not attempt the tests on wet or unpaved
road, open road, or highway. (This may cause an accident or personal injury.)
Driver and passenger assume it will not operate and prepare themselves accordingly.
1. Tighten driver and passenger seat belts.
2. Drive at approximately 25 km/h (16 MPH).
3. Notify passenger of a sudden stop. Driver and passenger prepare themselves for the possibility of
system not operating. Then, driver fully depresses the brake pedal to stop suddenly.
4. Make sure that the shoulder of the seat belt is pulled while braking.
Diagnoses Symptom ChartNHS00087
Check CAN Communication Circuit [U1000]NHS00088
1. CHECK SELF-DIAGNOSTIC RESULT
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
With CONSULT-II
1. Connect CONSULT-II, and turn ignition switch ON.
2. Touch “PRECRASH SEATBELT” on “SELECT SYSTEM”
screen.
3. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
4. Check display content in self-diagnostic results.
Displayed U1000?
Ye s > > G O T O LAN-50, "CAN System Specification Chart" .
No >> Inspection END.
Symptom Diagnosis procedureReference
page
All functions of pre-crash seat belt system
does not operate.1. Check ignition power supply circuit SB-16
2. Check motor power supply and ground circuit [B2454]SB-16
3. Check CAN communication circuitSB-15
4. Replace pre-crash seat belt control unitSB-28
Driver side pre-crash seat belt system does
not operate.1. Check seat belt buckle switch (driver side) circuit SB-182. Check pre-crash seat belt motor LH circuit [B2452]SB-24
3. Replace pre-crash seat belt control unitSB-28
Passenger side pre-crash seat belt system
does not operate.1. Check seat belt buckle switch (passenger side) circuit SB-202. Check pre-crash seat belt motor RH circuit [B2451]SB-26
3. Replace pre-crash seat belt control unitSB-28
Pre-crash seat belt system does not operate
during emergency brake operation.1. Check CAN communication circuit [U1000]SB-152. Check brake pedal stroke sensor circuit [B2453]SB-21
3. Check brake pedal stroke sensor shield wire circuit SB-27
4. Replace pre-crash seat belt control unitSB-28
PHIA0772E

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INFINITI M35 2007 Factory Service Manual SB-16
PRE-CRASH SEAT BELT
Revision: 2007 April2007 M35/M45
Check Ignition Power Supply Circuit NHS00089
1. CHECK FUSE
Check 10A fuse [No.15, located in fuse block (J/B)].
NOTE:
Refer to SB-3, "
Compon

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INFINITI M35 2007 Factory Service Manual PRE-CRASH SEAT BELT
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Revision: 2007 April2007 M35/M45
2. CHECK SELF-DIAGNOSTIC RESULT
With CONSULT-II
Select “SELF-DIAG RESULTS” and then make sure the “MOTOR
PWR

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INFINITI M35 2007 Factory Service Manual SB-18
PRE-CRASH SEAT BELT
Revision: 2007 April2007 M35/M45
Check Seat Belt Buckle Switch (Driver Side) Circuit NHS0008B
1. CHECK PRE-CRASH SEAT BELT CONTROL UNIT INPUT SIGNAL
With CONSULT-II
Select �

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INFINITI M35 2007 Factory Service Manual PRE-CRASH SEAT BELT
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Revision: 2007 April2007 M35/M45
2. CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) HARNESS
1. Turn ignition switch OFF.
2. Disconnect pre-crash seat be

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