NISSAN TIIDA 2007 Service Repair Manual

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.

B1XXX AIR BAG DIAGNOSIS SENSOR UNIT
SRC-53
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>>END

SRC-54
< COMPONENT DIAGNOSIS >
B1209 – B1210 COLLISION DETECTION
B1209 – B1210 COLLISION DETECTION
DescriptionINFOID:0000000001396407
DTC B1209 - B1210 COLLISION DETECTION
The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a frontal
or side deployment of one or more air bags or pre-tensioners. If this DTC is detected after a SRS repair, the
air bag diagnosis sensor unit has not yet been replaced. This DTC can not be erased.
PA R T L O C AT I O N
Refer to SRC-7, "SRS Component Parts Location".
DTC LogicINFOID:0000000001396408
DTC DETECTION LOGIC
With 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-54, "
DiagnosisProcedure(Componentdiagnosis)".
>>END
Diagnosis Procedure (Component diagnosis)INFOID:0000000001396409
Refer to SR-23, "For Frontal Collision" or SR-24, "For Side and Rollover Collision".
CONSULT-III name DTC DTC detecting condition Repair order
FRONTAL COLLISION
DETECTIONB1209Driver and/or front passenger air bag mod-
ules are deployed.Refer to SR-23, "
For Frontal Collision".
SIDE COLLISION DE-
TECTIONB1210Side and/or curtain air bag modules are
deployed.Refer to SR-24, "
For Side and Rollover Collision".

SEAT BELT WARNING LAMP CONTROL UNIT
SRC-55
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SEAT BELT WARNING LAMP CONTROL UNIT
Power Supply and Ground Circuit Check for Seat Belt Warning Lamp Control Unit
INFOID:0000000001724689
1.CHECK FUSES
Check for blown fuses.
Are any fuses blown?
YES >> Install new fuse. Eliminate cause of malfunction if fuse blows again.
NO >> GO TO 2
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect the seat belt warning lamp control unit connectors
B50 and B51.
2. Check voltage between seat belt warning lamp control unit har-
ness connectors B50, B51 terminals 1, 17 and ground.
Are the inspection results normal?
YES >> GO TO 3
NO >> Check harness for open between seat belt warning lamp control unit and fuse.
3.GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Check continuity between seat belt warning lamp control unit
harness connector B50 terminal 16 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Check harness for ground.
Seat Belt Buckle Switch Circuit CheckINFOID:0000000001726677
1.CHECK SEAT BELT BUCKLE SWITCH SIGNAL
1. Turn ignition switch ON.
2. Fasten both seat belts.
Unit Power source Fuse Location
Seat belt warning lamp control
unitBattery 14
Fuse block (J/B)
Ignition switch ON or START 2
Terminals Ignition switch position
(+)
(–) OFF ON
Connector Terminal
A: B50 1
GroundBattery
voltage
B: B51 17 —Battery
voltage
AWHIA0021ZZ
Te r m i n a l s
Continuity (+)
(–)
Connector Terminal
B50 16 Ground Yes
AWHIA0022ZZ

SRC-56
< COMPONENT DIAGNOSIS >
SEAT BELT WARNING LAMP CONTROL UNIT
3. Check voltage between seat belt warning lamp control unit har-
ness connector B51 terminals 21, 22 and ground.
Are inspection results normal?
YES >> GO TO 2.
NO >> Replace seat belt warning lamp control unit.
2.CHECK HARNESS BETWEEN SEAT BELT WARNING LAMP CONTROL UNIT AND SEAT BELT BUCKLE
SWITCH
1. Turn ignition switch OFF.
2. Disconnect the seat belt warning lamp control unit harness connector and the seat belt buckle switch har-
ness connector.
3. Check continuity between seat belt warning lamp control unit
harness connector B51 (A) terminals 21, 22 and seat belt buckle
switch harness connector B9, B10 (B) terminal 1.
Also check harness for short to ground and short to power.
Are inspection results normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check continuity between seat belt buckle switch harness connector
B9, B10 terminal 2 and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit in harness or connectors.
4.CHECK SEAT BELT BUCKLE SWITCH
Fasten and unfasten the seat belt buckle switch and check continuity
between seat belt buckle switch terminals 1 and 2.
Are inspection results normal?
YES >> GO TO 5.
NO >> Replace seat belt buckle switch. Refer to SE-14,
"Removal and Installation".
5.CHECK SEAT BELT WARNING LAMP CONTROL UNIT
Check seat belt warning lamp control unit input/output signals. Refer to SRC-58, "
Reference Value".
Are inspection results normal?
YES >> Inspection End.
Connector Terminals Voltage
B51 21 - Ground
Battery voltage
22 - Ground
AWHIA0023ZZ
Continuity should exist.
AWHIA0024ZZ
Continuity should exist.
AWHIA0025ZZ
Terminal Condition Continuity
1 - 2Fastened No
Unfastened Yes
AWHIA0026ZZ

SEAT BELT WARNING LAMP CONTROL UNIT
SRC-57
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NO >> Check seat belt warning lamp control unit pin terminals for damage or loose connections. If any
items are damaged, repair or replace damaged parts. If not damaged, replace seat belt warning
lamp control unit.

SRC-58
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
ECU DIAGNOSIS
DIAGNOSIS SENSOR UNIT
Reference ValueINFOID:0000000001726678
SEAT BELT WARNING LAMP CONTROL UNIT HARNESS TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR SEAT BELT WARNING LAMP CONTROL UNIT
AWHIA0027ZZ
Te r m i n a l
(color)ItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation
1 (V) Battery power — — Battery voltage
8 (O)Driver seat belt warn-
ing lamp outputON — 0
15 (BR)Passenger seat belt
warning lamp outputON — 0
16 (BR) Ground — — —
17 (O) Ignition power ON — Battery voltage
21 (O)Driver seat belt buck-
le switch inputON Driver seat belt fastened 12
22 (LG)Passenger seat belt
buckle switch inputON Passenger seat belt fastened 12
36 (V)Vehicle speed signal
(2-pulse)ONSpeedometer operated
[When vehicle speed is approx. 40 km/h (25
MPH)] NOTE:
Maximum voltage may be 5V due to
specifications (connected units).
PKIC0642E

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

SRC-60
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
ALHWA0009GB

DIAGNOSIS SENSOR UNIT
SRC-61
< ECU DIAGNOSIS >
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ALHIA0082GB