2006 INFINITI M35 belt

PRE-CRASH SEAT BELT
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Revision: 2006 January2006 M35/M45
THWT0142E

SB-10
PRE-CRASH SEAT BELT
Revision: 2006 January2006 M35/M45
THWT0143E

PRE-CRASH SEAT BELT
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Revision: 2006 January2006 M35/M45
THWT0144E

SB-12
PRE-CRASH SEAT BELT
Revision: 2006 January2006 M35/M45
THWT0145E

PRE-CRASH SEAT BELT
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Revision: 2006 January2006 M35/M45
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-16, "
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-16,
"Diagnoses Symptom Chart" .
6. Does pre-crash seat belt system operate normally?
OK: GO TO 7.
NG: GO TO 4.
7. INSPECTION END
Terminal Wire Color Item ConditionVoltage [V]
(Approx.)
1G/RSeat belt motor RH release direction
signalSeat belt motor RH operation Battery voltage
Other than above 0
2 W Power source (BAT) – Battery voltage
3G/YSeat belt motor RH fastened direction
signalSeat belt motor RH operation Battery voltage
Other than above 0
4GY/WSeat belt motor LH fastened direction
signalSeat belt motor LH operation Battery voltage
Other than above 0
5 B/Y Ground (Driver circuit) – 0
6L/YSeat belt motor LH release direction
signalSeat belt motor LH operation Battery voltage
Other than above 0
7 G/Y Seat belt indicator signalWhen 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 RHWhen seat belt is fastened 5
When seat belt is un-fastened 0
10 SB Seat belt buckle switch LHWhen seat belt is fastened Battery voltage
When seat belt is un-fastened 0
13 W/G Power source (IGN) Ignition switch ON or START Battery voltage
16 WBrake pedal stroke sensor output sig-
nal 1Brake pedal is fully released operation 1
Brake pedal is slightly depressed operation 4
18 RPower source (Brake pedal stroke sen-
sor)
–5
20 GBrake pedal stroke sensor output sig-
nal 2Brake pedal is fully released operation 4
Brake pedal is slightly depressed operation 1
21 B Ground (Brake pedal stroke sensor) – 0
22 P CAN-L – -
24 L CAN-H – -
25 – Ground (Shield wire) – 0
26 B/Y Ground (Control circuit) – 0

SB-14
PRE-CRASH SEAT BELT
Revision: 2006 January2006 M35/M45
CONSULT-II Function (PRECRASH SEATBELT)NHS00085
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
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.
1. Turn ignition switch “OFF”.
2. Connect “CONSULT-II” and “CONSULT-II CONVERTER” to the
data link connector (1).
3. Turn ignition switch “ON”.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “PRECRASH SEATBELT”.
If “PRECRASH SEATBELT” is not indicated, refer to GI-40,
"CONSULT-II Data Link Connector (DLC) Circuit" .
CONSULT-II
diagnosis itemsInspection item
self-diagnosis modeContentReference
page
PRECRASH
SEATBELTSELF–DIAG RESULTS Carries out the self-diagnosis.SB-15
DATA MONITOR Displays pre-crash seat belt control unit input data in real time.SB-15
CAN DIAG SUPPORT MNTRThe results of transmit / receive diagnosis of CAN communication
can be read.LAN-20
ECU PART NUMBER Displays pre-crash seat belt control unit part No. –
PBIB2712E
BCIA0029E
BCIA0030E

PRE-CRASH SEAT BELT
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Revision: 2006 January2006 M35/M45
6. Select diagnosis mode.
“SELF-DIAG RESULTS”, “DATA MONITOR”, “CAN DIAG SUP-
PORT MNTR“ and “ECU PART NUMBER” are available.
HOW TO READ SELF-DIAGNOSTIC RESULTS
SELF-DIAGNOSTIC RESULTS ITEM CHART
DATA MONITOR ITEM CHART
BCIA0031E
PHIA1176E
CONSULT-II display Item Malfunction is detected when...Reference
page
CAN COMM CIRCUIT [U1000] CAN communication Malfunction is detected in CAN communication. SB-16
SB MOTOR RH CIRC [B2451] Seat belt motor RH Circuit of seat belt motor (RH) is open or shorted.SB-27
SB MOTOR LH CIRC [B2452] Seat belt motor LH Circuit of seat belt motor (LH) is open or shorted.SB-25
BR STROKE SEN CIRC [B2453]Brake pedal stroke
sensorCircuit of brake pedal stroke sensor is open or shorted.SB-22
MOTOR PWR SUP CIRC [B2454]Motor power supply
circuitCircuit of motor power supply is open or shorted.SB-17
PSB C/U INT CIRCUIT [B2455] ECU circuit ECU circuit internal abnormality –
Monitor item [OPERATION or UNIT] Contents
SB SW RH SIG “ON/OFF” RH seat belt switch signal is displayed.
SB SW LH SIG “ON/OFF” LH seat belt switch signal is displayed.
VHCL SPEED SE “Km/h” Vehicle speed signal is displayed.
B PEDAL SIG1 “V” Brake pedal stroke sensor 1 signal voltage is displayed.
B PEDAL SIG 2 “V” Brake pedal stroke sensor 2 signal voltage is displayed.

SB-16
PRE-CRASH SEAT BELT
Revision: 2006 January2006 M35/M45
Preliminary CheckNHS00086
PRE-CRASH SEAT BELT OPERATION INSPECTION
WAR NING :
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 System Inspection [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?
Yes >> GO TO LAN-7, "Precautions When Using CONSULT-II" .
No >> Inspection END.
Symptom Diagnosis procedureReference
page
All functions of pre-crash seat belt system does not oper-
ate.Ignition power supply circuit checkSB-17
Motor power supply and ground circuit checkSB-17
CAN communication circuit checkSB-16
Replace pre-crash seat belt control unit.SB-29
Driver side pre-crash seat belt system does not operate.Seat belt buckle switch (driver side) circuit checkSB-19Pre-crash seat belt motor LH checkSB-25
Replace pre-crash seat belt control unit.SB-29
Passenger side pre-crash seat belt system does not oper-
ate.Seat belt buckle switch (passenger side) circuit checkSB-21Pre-crash seat belt motor RH checkSB-27
Replace pre-crash seat belt control unit.SB-29
Pre-crash seat belt system does not operate during emer-
gency brake operation.CAN communication circuit checkSB-16Brake pedal stroke sensor circuit checkSB-22
Brake pedal stroke sensor shield wire circuit checkSB-28
Replace pre-crash seat belt control unit.SB-29
PHIA0772E