2005 INFINITI QX4 Factory Service Manual

fuel cap release jacking points oil capacity fuel type oil additives rear entertainment

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INFINITI QX4 2005 Factory Service Manual SRS-26
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
PRE-TEN2 FRONT RH
[OPEN]
[B1177]The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connect

SRS-26
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
PRE-TEN2 FRONT RH
[OPEN]
[B1177]The circuit for front RH seat belt buckle pre-tensioner is
open.1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace front RH seat belt buckle
pre-tensioner.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. PRE-TEN2 FRONT RH
[VB-SHORT]
[B1178]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to some power supply circuit.
PRE-TEN2 FRONT RH
[GND-SHORT]
[B1179]
The circuit for front RH seat belt buckle pre-tensioner is
shorted to ground.
PRE-TEN2 FRONT RH
[SHORT]
[B1180]
The circuits for the front RH seat belt buckle pre-tensioner
are shorted to each other.
FR CURTN MODULE LH
[OPEN]
[B1198]
The LH side front 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 LH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. FR CURTN MODULE LH
[VB-SHORT]
[B1199]
The LH side front curtain air bag module circuit is shorted
to some power supply circuits.
FR CURTN MODULE LH
[GND-SHORT]
[B1200]
The LH side front curtain air bag module circuit is shorted
to ground.
FR CURTN MODULE LH
[SHORT]
[B1201]
The circuits for the LH side front curtain air bag module are
shorted to each other.
FR CURTN MODULE RH
[OPEN]
[B1193]
The RH side front 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 RH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. FR CURTN MODULE RH
[VB-SHORT]
[B1194]
The RH side front curtain air bag module circuit is shorted
to some power supply circuits.
FR CURTN MODULE RH
[GND-SHORT]
[B1195]
The RH side front curtain air bag module circuit is shorted
to ground.
FR CURTN MODULE RH
[SHORT]
[B1196]
The circuits for the RH side front curtain air bag module are
shorted to each other.
CURTAIN MODULE LH
[OPEN]
[B1150]
The LH side rear 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 LH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. CURTAIN MODULE LH
[VB-SHORT]
[B1151]
The LH side rear curtain air bag module circuit is shorted to
some power supply circuits.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]
The LH side rear curtain air bag module circuit is shorted to
ground.
CURTAIN MODULE LH
[SHORT]
[B1153]
The circuits for the LH side rear curtain air bag module are
shorted to each other. Diagnostic item ExplanationRepair order
Recheck SRS at each replacement

Page 3106 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
SRS-27
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SRS
Revision: October 20052005 QX56
CURTAIN MODULE RH
[OPEN]
[B1145]The RH side rear curtain air bag module circuit is open. 1. Visually check the wiri

TROUBLE DIAGNOSIS
SRS-27
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CURTAIN MODULE RH
[OPEN]
[B1145]The RH side rear 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 RH side curtain air bag
module.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness. CURTAIN MODULE RH
[VB-SHORT]
[B1146]
The RH side rear curtain air bag module circuit is shorted
to some power supply circuits.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]
The RH side rear curtain air bag module circuit is shorted
to ground.
CURTAIN MODULE RH
[SHORT]
[B1148]
The circuits for the RH side rear 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 sen-
sor 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 con-
trol unit assembly.
OCCUPANT SENS C/U
[COMM FAIL]
[B1022]
Communication between the occupant classification sys-
tem control unit and air bag diagnosis sensor unit is inter-
rupted.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
4. Replace the air bag diagnosis sen-
sor 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 con-
trol 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 visible
damage.
3. Replace RH front seat belt assem-
bly.
4. Replace RH front seat cushion/
occupant classification system con-
trol unit assembly.
5. Replace the related harness.
PASS A/B INDCTR CKT
[B1023]
Front passenger air bag off indicator is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.
FRONTAL COLLISION
DETECTION
[B1209]
Driver and front passenger air bag modules are deployed. 1. Refer to SRS-61, "COLLISION
DIAGNOSIS" . Diagnostic item ExplanationRepair order
Recheck SRS at each replacement

Page 3107 of 3419

INFINITI QX4 2005 Factory Service Manual SRS-28
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag war

Page 3108 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
SRS-29
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SRS
Revision: October 20052005 QX56
6. Touch “SELF-DIAG [CURRENT]”.
7. If no malfunction is detected on “SELF-DIAG [CURRENT]”,
repair of SRS is

Page 3109 of 3419

INFINITI QX4 2005 Factory Service Manual SRS-30
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56

Page 3110 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
SRS-31
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SRS
Revision: October 20052005 QX56
DIAGNOSTIC PROCEDURE 4 (CONTINUED FROM DIAGNOSTIC PROCEDURE 2)
Check SRS Repair History
1. CONSIDER POSSIBILITY THAT

Page 3111 of 3419

INFINITI QX4 2005 Factory Service Manual SRS-32
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
6. Touch “SELF-DIAG [PAST]”.
7. If diagnostic codes are displayed on “SELF-DIAG [PAST]”, go to
step 10.
If no malfunction is detected o

Page 3112 of 3419

INFINITI QX4 2005 Factory Service Manual TROUBLE DIAGNOSIS
SRS-33
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SRS
Revision: October 20052005 QX56
14. Repair the system as outlined by the “Repair order” in “Intermittent Malfunction Diagnostic Code Chart”,

TROUBLE DIAGNOSIS
SRS-33
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SRS
Revision: October 20052005 QX56
14. Repair the system as outlined by the “Repair order” in “Intermittent Malfunction Diagnostic Code Chart”,
that corresponds to the self-diagnostic result. For replacement procedure of component parts, refer to the
Removal and Installation procedure for the appropriate component.
15. Go to SRS-28, "
DIAGNOSTIC PROCEDURE 3" , for final checking.
CONSULT-II Diagnostic Code Chart ("SELF-DIAG [PAST]" or "TROUBLE DIAG RECORD")
Diagnostic item ExplanationRepair order
Recheck SRS at each replacement
NO DTC IS DETECTEDWhen malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode.
Low battery voltage (Less than
9V)Go to SRS-28, "DIAGNOSTIC PRO-
CEDURE 3" .
Self-diagnostic result “SELF-DIAG
[PAST]” (previously stored in the
memory) might not be erased
after repair.
Intermittent malfunction has been
detected in the past.
Go to SRS-31, "DIAGNOSTIC PRO-
CEDURE 4 (CONTINUED FROM
DIAGNOSTIC PROCEDURE 2)" .
Go to SRS-31, "DIAGNOSTIC PRO-
CEDURE 5" .
No malfunction is detected. —
DRIVER AIRBAG MODULE
[OPEN]
[B1049] or [B1054]
Driver air bag module circuit is open (including the spiral
cable).1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace driver air bag module.
4. Replace the spiral cable.
5. Replace the air bag diagnosis sen-
sor unit.
6. Replace the related harness. DRIVER AIRBAG MODULE
[VB-SHORT]
[B1050] or [B1055]
Driver air bag module circuit is shorted to some power sup-
ply 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 visible
damage.
3. Replace front passenger air bag
module.
4. Replace the air bag diagnosis sen-
sor 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 visible
damage.
3. Replace the crash zone sensor.
4. Replace the air bag diagnosis sen-
sor unit.
5. Replace the related harness.

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