2008 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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WHWA0301E

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NISSAN LATIO 2008 Service Repair Manual SRS-16
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TROUBLE DIAGNOSIS
CONSULT-III Function (AIR BAG)
INFOID:0000000001703919
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
WHWA

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NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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HOW TO CHANGE BETWEEN SELF-DIAGNOSIS MODE AND USER MODE WITH CONSULT-III
From User Mode to Diagnosis Mode
After selectin

TROUBLE DIAGNOSIS
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HOW TO CHANGE BETWEEN SELF-DIAGNOSIS MODE AND USER MODE WITH CONSULT-III
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
From Diagnosis Mode to User Mode
To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-III until “SELECT SYSTEM”
appears, Diagnosis mode automatically changes to User mode.
HOW TO ERASE SELF-DIAGNOSIS RESULTS
NOTE:
If the memory in “SELF-DIAG [PAST]” is not erased, User mode will continue to show the system mal-
function by the operation of the warning lamp even if the malfunction is repaired completely.
• “SELF-DIAG [CURRENT]”
A current self-diagnosis result is displayed on the CONSULT-III screen in real time. After the malfunction is
repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.
• “SELF-DIAG [PAST]”
Return to the “SELF-DIAG [CURRENT]” CONSULT-III screen by touching “BACK” key of CONSULT-III and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
• “TROUBLE DIAG RECORD”
The memory of “TROUBLE DIAG RECORD” cannot be erased.
Self-Diagnosis Function (Without CONSULT-III)INFOID:0000000001703920
The reading of these results is accomplished using one of two modes —“User mode” and “Diagnosis mode”.
HOW TO CHANGE BETWEEN USER MODE AND SELF-DIAGNOSIS MODE WITHOUT CONSULT-
AIR BAG diagnostic mode Description
SELF-DIAG [CURRENT]A current Self-diagnosis result is displayed on the CONSULT-III screen in real time. This refers to a mal-
functioning part requiring replacement.
SELF-DIAG [PAST]Diagnosis results previously stored in the memory are displayed on the CONSULT-III screen. The
stored results will remain until the memory is erased.
TROUBLE DIAG RECORDWith TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-III screen.
ECU DISCRIMINATED NO.The air bag diagnosis sensor unit for each vehicle model is assigned with its own, individual classifica-
tion number. This number will be displayed on the CONSULT-III screen, as shown. When replacing the
air bag diagnosis sensor unit, refer to the part number for the compatibility. After installation, replace-
ment with a correct unit can be checked by confirming this classification number on the CONSULT-III
screen.
The air bag diagnosis sensor unit discriminated number assigned is F636.
PASSENGER AIR BAGThe STATUS (readiness) of the front passenger air bag module is displayed. The STATUS displayed
(ON/OFF) depends on the signals supplied to the occupant classification system control module and
air bag diagnosis sensor unit. Refer to SRS-5, "
Occupant Classification System (OCS)" for more in-
formation.

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NISSAN LATIO 2008 Service Repair Manual SRS-18
< SYMPTOM DIAGNOSIS >
TROUBLE DIAGNOSIS
III
HOW TO ERASE SELF-DIAGNOSIS RESULTS
After a malfunction is repaired, turn the ignition switch OFF for at least one second, then back ON. Diagnosis
mo

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NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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Air bag warning lamp examples
Trouble Diagnosis with CONSULT-IIIINFOID:0000000001703922
DIAGNOSTIC PROCEDURE 2
Diagnosti

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NISSAN LATIO 2008 Service Repair Manual SRS-20
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TROUBLE DIAGNOSIS
CONSULT-III Diagnostic Code Chart ("SELF-DIAG [CURRENT]")
Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
NO DTC IS DETEC

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TROUBLE DIAGNOSIS
CONSULT-III Diagnostic Code Chart ("SELF-DIAG [CURRENT]")
Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
NO DTC IS DETECTEDMalfunction is indicat-
ed by the “AIR BAG”
warning lamp in User
mode.Low battery voltage (Less than 9V) 1. Go to SC-4
2. Go to "DIAGNOSTIC PROCE-
DURE 3" .
“SELF-DIAG [PAST]” memory might
not be erased.Go to "DIAGNOSTIC PROCEDURE 4"
.
Intermittent malfunction has been
detected in the past.Go to "DIAGNOSTIC PROCEDURE 5"
.
No malfunction is detected in User mode. —
DRIVER AIRBAG MODULE
[OPEN]
[B1049] or [B1054]Driver air bag module circuit is open (including the spiral ca-
ble).1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace 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]
[B1050] or [B1055]Driver air bag module circuit is shorted to some power supply
circuit (including the spiral cable).
DRIVER AIRBAG MODULE
[GND-SHORT]
[B1051] or [B1056]Driver air bag module circuit is shorted to ground (including
the spiral cable).
DRIVER AIRBAG MODULE
[SHORT]
[B1052] or [B1057]Driver air bag module circuits are shorted to each other.
ASSIST A/B MODULE
[OPEN]
[B1065] or [B1070]Front passenger air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace front passenger air bag
module.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness. ASSIST A/B MODULE
[VB-SHORT]
[B1066] or [B1071]Front passenger air bag module circuit is shorted to some
power supply circuit.
ASSIST A/B MODULE
[GND-SHORT]
[B1067] or [B1072]Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE
[SHORT]
[B1068] or [B1073]Front passenger air bag module circuits are shorted to each
other.
CRASH ZONE SEN
[UNIT FAIL]
[B1033] or [B1034]
CRASH ZONE SEN
[COMM FAIL]
[B1035]Crash zone sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace the crash zone sensor.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness.
SIDE MODULE LH
[OPEN]
[B1134]Front LH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace front LH seat back as-
sembly (front LH side air bag
module).
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness. SIDE MODULE LH
[VB-SHORT]
[B1135]Front LH side air bag module circuit is shorted to some power
supply circuit.
SIDE MODULE LH
[GND-SHORT]
[B1136]Front LH side air bag module circuit is shorted to ground.
SIDE MODULE LH
[SHORT]
[B1137]Front LH side air bag module circuits are shorted to each oth-
er.

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NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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SIDE MODULE RH
[OPEN]
[B1129]Front RH side air bag module circuit is open. 1. Visually check the wiring harness
connect

TROUBLE DIAGNOSIS
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SIDE MODULE RH
[OPEN]
[B1129]Front RH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace front RH seat back as-
sembly (front RH side air bag
module).
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness. SIDE MODULE RH
[VB-SHORT]
[B1130]Front RH side air bag module circuit is shorted to some power
supply circuit.
SIDE MODULE RH
[GND-SHORT]
[B1131]Front 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 oth-
er.
SATELLITE SENS LH
[UNIT FAIL]
[ B 111 8 ] o r [ B 111 9 ]
SATELLITE SENS LH
[COMM FAIL]
[B1120]LH side air bag (satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace the LH side air bag (sat-
ellite) sensor.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness.
SATELLITE SENS RH
[UNIT FAIL]
[ B 111 3 ] o r [ B 111 4 ]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]RH side air bag (satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace the RH side air bag (sat-
ellite) sensor.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[OPEN]
[B1086]The circuit for front LH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visi-
ble damage.
3. Replace 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]
[B1087]The circuit for front LH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT LH
[GND-SHORT]
[B1088]The circuit for front LH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT LH
[SHORT]
[B1089]The circuits for the front LH seat belt pre-tensioner are shorted
to each other.
PRE-TEN FRONT RH
[OPEN]
[B1081]The circuit for front RH seat belt pre-tensioner is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visi-
ble damage.
3. Replace 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]
[B1082]The circuit for front RH seat belt pre-tensioner is shorted to
some power supply circuit.
PRE-TEN FRONT RH
[GND-SHORT]
[B1083]The circuit for front RH seat belt pre-tensioner is shorted to
ground.
PRE-TEN FRONT RH
[SHORT]
[B1084]The circuits for the front RH seat belt pre-tensioner are short-
ed to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement

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NISSAN LATIO 2008 Service Repair Manual SRS-22
< SYMPTOM DIAGNOSIS >
TROUBLE DIAGNOSIS
CURTAIN MODULE LH
[OPEN]
[B1150]The LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harn

SRS-22
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TROUBLE DIAGNOSIS
CURTAIN MODULE LH
[OPEN]
[B1150]The LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace LH side curtain air bag
module.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness. CURTAIN MODULE LH
[VB-SHORT]
[B1151]The LH side curtain air bag module circuit is shorted to some
power supply circuits.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]The LH side curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE LH
[SHORT]
[B1153]The circuits for the LH side curtain air bag module are shorted
to each other.
CURTAIN MODULE RH
[OPEN]
[B1145]The RH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace RH side curtain air bag
module.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness. CURTAIN MODULE RH
[VB-SHORT]
[B1146]The RH side curtain air bag module circuit is shorted to some
power supply circuits.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]The RH side curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE RH
[SHORT]
[B1148]The circuits for the RH side curtain air bag module are shorted
to each other.
CONTROL UNIT
[B1XXX]Air bag diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the air bag diagnosis
sensor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
[B1017], [B1020] or [B1021]Occupant classification system is malfunctioning. 1. Replace RH front seat cushion/
occupant classification system
control unit assembly.
OCCUPANT SENS C/U
[COMM FAIL]
[B1022]Communication between the occupant classification system
control unit and air bag diagnosis sensor unit is interrupted.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace RH front seat cushion/
occupant classification system
control unit assembly.
4. Replace the air bag diagnosis
sensor unit.
5. Replace the related harness.
OCCUPANT SENS
[UNIT FAIL]
[B1018]Occupant classification sensor is malfunctioning. 1. Replace RH front seat cushion/
occupant classification system
control unit assembly.
BELT TENSION SENS
[UNIT FAIL]
[B1019]Belt tension sensor is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace RH front seat belt as-
sembly.
4. Replace RH front seat cushion/
occupant classification system
control unit assembly. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement

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