2007 NISSAN TIIDA wiring

B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
SRC-51
< COMPONENT DIAGNOSIS >
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B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
DescriptionINFOID:0000000001396398
DTC B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
The air bag diagnosis sensor unit will run self diagnostics when the ignition switch is turned ON. It has the
potential to set many diagnostic trouble codes which will conform to the B1XXX format, but will not match any
other SRS diagnostic trouble codes. Refer to SRC-76, "
Trouble Diagnosis with CONSULT-III".
PA R T L O C AT I O N
Refer to SRC-7, "SRS Component Parts Location".
DTC LogicINFOID:0000000001396399
DTC DETECTION LOGIC
With CONSULT-lll
Without CONSULT-lll
DTC CONFIRMATION PROCEDURE (With CONSULT-lll)
1.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2
2.CONSULT-III
Select "DIAG MODE".
>> GO TO 3
3.DTC
If DTC is detected. Refer to SRC-52, "
DiagnosisProcedure(Componentdiagnosis)".
>>END
DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
CONSULT-III name DTC DTC detecting condition Repair order
CONTROL UNIT B1XXXAir bag diagnosis sensor unit is malfunc-
tioning.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the air bag diagnosis sensor unit.
4. Replace the related harness.
WHIA0198E

SRC-52
< COMPONENT DIAGNOSIS >
B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
1.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
>> GO TO 3
3.WAIT TIME
Wait more than 3 seconds.
>> GO TO 4
4.REPEAT STEPS
Repeat steps 1 to 3 twice.
>> GO TO 5
5.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 6
6.DIAGNOSTIC MODE
SRS system is now in diagnostic mode and AIR BAG warning lamp flashes. Refer to SRC-13, "
Trouble Diag-
nosis without CONSULT-III".
>>END
Diagnosis Procedure (Component diagnosis)INFOID:0000000001396400
Recheck SRS after each replacement.
1.HARNESS CONNECTOR
Is there any visible damage to the connector?
YES or NO
YES >> Replace the harness.
NO >> GO TO 2
2.WIRING HARNESS
Is there any visible damage to the harness?
YES or NO
YES >> Replace the harness.
NO >> GO TO 3
3.AIR BAG DIAGNOSIS SENSOR UNIT
Replace the air bag diagnosis sensor unit. Refer to SR-15, "
Removal and Installation".
>> GO TO 4
4.RELATED HARNESS
Replace the related harness.

DIAGNOSIS SENSOR UNIT
SRC-59
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Wiring Diagram — RHD Models —INFOID:0000000001396410
ALHWA0008GB

SRC-68
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
Wiring Diagram — LHD Models —
INFOID:0000000001572925
ALHWA0010GB

DIAGNOSIS SENSOR UNIT
SRC-77
< ECU DIAGNOSIS >
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CONSULT-III name DTC DTC detecting condition Repair order
DRIVER AIRBAG MODULE
[OPEN]B1049Driver air bag module circuit (DR1) is
open
(including the spiral cable).1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the driver air bag module.
4. Replace the spiral cable.
5. Replace the air bag diagnosis sensor unit.
6. Replace the related harness. DRIVER AIRBAG MODULE
[VB-SHORT]B1050Driver air bag module circuit (DR1) is
shorted to a power supply circuit
(including the spiral cable).
DRIVER AIRBAG MODULE
[GND-SHORT]B1051Driver air bag module circuit (DR1) is
shorted to ground
(including the spiral cable).
DRIVER AIRBAG MODULE
[SHORT]B1052Driver air bag module circuits (DR1) are
shorted to each other
(including the spiral cable).
ASSIST A/B MODULE
[OPEN]B1065Front passenger air bag module circuit
(AS1) is open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front passenger air bag module.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. ASSIST A/B MODULE
[VB-SHORT]B1066Front passenger air bag module circuit
(AS1) is shorted to a power supply cir-
cuit.
ASSIST A/B MODULE
[GND-SHORT]B1067Front passenger air bag module circuit
(AS1) is shorted to ground.
ASSIST A/B MODULE
[SHORT]B1068Front passenger air bag module circuits
(AS1) are shorted to each other.
SIDE MODULE LH
[OPEN]B1134Front LH side air bag module circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front LH seat back assembly.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. SIDE MODULE LH
[VB-SHORT]B1135Front LH side air bag module circuit is
shorted to a power supply circuit.
SIDE MODULE LH
[GND-SHORT]B1136Front LH side air bag module circuit is
shorted to ground.
SIDE MODULE LH
[SHORT]B1137Front LH side air bag module circuits are
shorted to each other.
SIDE MODULE RH
[OPEN]B1129Front RH side air bag module circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front RH seat back assembly.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. SIDE MODULE RH
[VB-SHORT]B1130Front RH side air bag module circuit is
shorted to a power supply circuit.
SIDE MODULE RH
[GND-SHORT]B1131Front RH side air bag module circuit is
shorted to ground.
SIDE MODULE RH
[SHORT]B1132
Front RH side air bag module circuits
are shorted to each other.
CURTAIN MODULE LH
[OPEN]B1150LH side curtain air bag module circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the LH side curtain air bag module.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. CURTAIN MODULE LH
[VB-SHORT]B1151LH side curtain air bag module circuit is
shorted to a power supply circuit.
CURTAIN MODULE LH
[GND-SHORT]B1152LH side curtain air bag module circuit is
shorted to ground.
CURTAIN MODULE LH
[SHORT]B1153LH side curtain air bag module circuits
are shorted to each other.
CURTAIN MODULE RH
[OPEN]B1145RH side curtain air bag module circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the RH side curtain air bag module.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. CURTAIN MODULE RH
[VB-SHORT]B1146RH side curtain air bag module circuit is
shorted to a power supply circuit.
CURTAIN MODULE RH
[GND-SHORT]B1147RH side curtain air bag module circuit is
shorted to ground.
CURTAIN MODULE RH
[SHORT]B1148RH side curtain air bag module circuits
are shorted to each other.

SRC-78
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
Trouble Diagnosis without CONSULT-III
INFOID:0000000001396412
WARNING LAMP FLASH CODE CHART
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp each time repair is finished. If malfunction is still observed, proceed to
the next step. When malfunction is eliminated, further repair work is not required.
PRE-TEN FRONT LH
[OPEN]B1086LH seat belt pre-tensioner circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front LH seat belt pre-tensioner.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. PRE-TEN FRONT LH
[VB-SHORT]B1087LH seat belt pre-tensioner circuit is
shorted to a power supply circuit.
PRE-TEN FRONT LH
[GND-SHORT]B1088LH seat belt pre-tensioner circuit is
shorted to ground.
PRE-TEN FRONT LH
[SHORT]B1089LH seat belt pre-tensioner circuits are
shorted to each other.
PRE-TEN FRONT RH
[OPEN]B1081RH seat belt pre-tensioner circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front RH seat belt pre-tensioner.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. PRE-TEN FRONT RH
[VB-SHORT]B1082RH seat belt pre-tensioner circuit is
shorted to a power supply circuit.
PRE-TEN FRONT RH
[GND-SHORT]B1083RH seat belt pre-tensioner circuit is
shorted to ground.
PRE-TEN FRONT RH
[SHORT]B1084RH seat belt pre-tensioner circuits are
shorted to each other.
PRE-TEN2 FRONT LH
[OPEN]B1182Lap seat belt pre-tensioner circuit is
open.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the front lap seat belt pre-tensioner.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. PRE-TEN2 FRONT LH
[VB-SHORT]B1183Lap seat belt pre-tensioner circuit is
shorted to a power supply circuit.
PRE-TEN2 FRONT LH
[GND-SHORT]B1184Lap seat belt pre-tensioner circuit is
shorted to ground.
PRE-TEN2 FRONT LH
[SHORT]B1185Lap seat belt pre-tensioner circuits are
shorted to each other.
CRASH ZONE SEN
[UNIT FAIL]B1033 Crash zone sensor has malfunctioned. 1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the crash zone sensor.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. B1034
CRASH ZONE SEN
[COMM FAIL]B1035Crash zone sensor communication er-
ror.
SATELLITE SENS LH
[UNIT FAIL]B1118 LH side air bag satellite sensor has mal-
functioned.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the LH side air bag satellite sensor.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. B 111 9
SATELLITE SENS LH
[COMM FAIL]B1120LH side air bag satellite sensor commu-
nication error.
SATELLITE SENS RH
[UNIT FAIL]B1113 RH side air bag satellite sensor has mal-
functioned.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the RH side air bag satellite sensor.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness. B 111 4
SATELLITE SENS RH
[COMM FAIL]B 111 5RH side air bag satellite sensor commu-
nication error.
CONTROL UNIT B1XXXAir bag diagnosis sensor unit is malfunc-
tioning.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the air bag diagnosis sensor unit.
4. Replace the related harness.
FRONTAL COLLISION DE-
TECTIONB1209Driver and/or front passenger air bag
modules are deployed.Refer to SR-23, "
For Frontal Collision".
SIDE COLLISION DETEC-
TIONB1210Side and/or curtain air bag modules are
deployed.Refer to SR-24, "
For Side and Rollover Collision". CONSULT-III name DTC DTC detecting condition Repair order

SRS AIR BAG SYSTEM
SRC-83
< SYMPTOM DIAGNOSIS >
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No >> GO TO 4
3.CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 1, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
YES >> Replace harness.
NO >> Inspection End.
4.CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT-III.
Is
“AIR BAG” displayed on CONSULT-III?
YES >> GO TO 5
NO >> Visually inspect the air bag diagnosis sensor unit harness connections. If the connections are OK,
replace the air bag diagnosis sensor unit. Refer to SR-15, "
Removal and Installation".
5.CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
Are there any loose connections?
Yes >> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If
“AIR BAG” warning lamp still does not turn off, replace the wiring harness.
No >> Replace air bag diagnosis sensor unit.
Seat Belt Warning Lamp Does Not Turn OnINFOID:0000000001726690
1.DETERMINE WHICH LAMP IS MALFUNCTIONING
Determine if at least one of the seat belt warning lamps function.
Does either the driver or passenger seat belt warning lamps operate?
Yes >> GO TO 2
No >> Refer to XXX SEAT BELT WARNING LAMP P&G TEST.
2.PERFORM BULB CHECK
Unfasten both seat belts and turn the ignition switch ON.
Does the malfunctioning side pass bulb check?
Yes >> GO TO 3
No >> Replace combination meter (Driver side) or check instrument panel warning lamp assembly.
Refer to XXX. (SEE MWI)
3.PERFORM SEAT BELT BUCKLE SWITCH CIRCUIT CHECK
Test the seat belt buckle switch circuit on the affected side. Refer to XXX SEAT BELT BUCKLE SWITCH CIR-
CUIT CHECK.
Are the inspection results normal?
Yes >> GO TO 4 (Driver side) or GO TO 5 (Passenger side)
No >> Repair as necessary.
4.CHECK HARNESS BETWEEN SEAT BELT WARNING LAMP CONTROL UNIT AND COMBINATION
METER
1. Turn ignition switch OFF.
2. Disconnect the seat belt warning lamp control unit harness connector and the combination meter connec-
tor.

SRC-86
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001396424
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000001396425
 Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
 Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have
passed.
 The air bag diagnosis sensor unit must always be installed with the arrow mark “⇐” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
 The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
 Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
 Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
 After air bag inflates, the front instrument panel assembly should be replaced if damaged.