Infiniti FX35 / FX45. Manual - part 941

 

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Infiniti FX35 / FX45. Manual - part 941

 

 

SRS-24

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

Trouble Diagnosis with CONSULT-III

INFOID:0000000001524168

DIAGNOSTIC PROCEDURE

DTC No. Index (“SELF-DIAG [CURRENT]” “SELF-DIAG [PAST]” or TROUBLE DIAG RECORD)

• Air bag is deployed.
• Seat belt pre-tensioner is deployed.

Go to 

SRS-47, "For Frontal Colli-

sion"

 or 

SRS-48, "For Side Collision"

• Diagnosis sensor unit is malfunction-

ing.

• Air bag power supply circuit is mal-

functioning.

• SRS air bag warning lamp circuit is 

malfunctioning.

Go to 

SRS-32, "Trouble Diagnosis: 

"AIR BAG" Warning Lamp Does Not 
Turn OFF"

.

• Diagnosis sensor unit is malfunction-

ing.

• Air bag warning lamp circuit is mal-

functioning.

Go to 

SRS-32, "Trouble Diagnosis: 

"AIR BAG" Warning Lamp Does Not 
Turn ON"

.

“AIR BAG” warning lamp operation — User mode 
—

SRS condition

Reference item

SHIA0013E

SHIA0014E

Diagnostic mode

Description

SELF-DIAG RESULT

The self-diagnosis result is Displayed. (SELF-DIAG [CURRENT], [PAST], [RECORD])

ECU DISCRIMINATED No.

The parts number of diagnosis sensor units displayed.

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

NO DTC IS DETECT-
ED.

When malfunction is in-
dicated by the “AIR 
BAG” warning lamp in 
User mode.

• Low battery voltage (Less than 9V)

• Self-diagnostic result “SELF-DIAG 

[PAST]” (previously stored in the 
memory) might not be erased after re-
pair.

• Intermittent malfunction has been de-

tected in the past.

• Go  to 

SRS-21, "CONSULT-III Func-

tion"

.

• No malfunction is detected.

—

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1001-B1015]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit. 

(ACU)

TROUBLE DIAGNOSIS

SRS-25

< SERVICE INFORMATION >

C

D

E

F

G

I

J

K

L

M

A

B

SRS

N

O

P

OCCUPANT SENS
[UNIT FAIL]
[1018]

• Trouble occurs in Occupant Classification System-SENS.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace front passenger seat 
cushion and occupant classifica-
tion system control unit as an as-
sembly.

4.

Replace diagnosis sensor unit 
(ACU).

BELT TENSION SENS
[UNIT FAIL]
[B1019]

• Trouble occurs in Belt Tension sensor (BTS), circuit of BTS—Oc-

cupant Classification System-CU, or Occupant Classification 
System-CU.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace passenger side seat belt 
assembly.

4.

Replace diagnosis sensor unit 
(ACU).

OCCUPANT SENS C/U
[UNIT FAIL]
[B1017] [B1020]
[B1021]

• Trouble occurs in Occupant Classification System-CU.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace front passenger seat 
cushion and occupant classifica-
tion system control unit as an as-
sembly.

4.

Replace diagnosis sensor unit 
(ACU).

OCCUPANT SENS C/U
[COMM FAIL]
[B1022]

• Trouble occurs in Occupant Classification System-CU, circuit of 

OCS-CU-ACU, or ACU.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace front passenger seat 
cushion and occupant classifica-
tion system control unit as an as-
sembly.

4.

Replace diagnosis sensor unit 
(ACU).

PASS A/B INDCTR 
CKT
[B1023]

• Front passenger air bag cut-off indicator circuit is open, or short-

ed each other or to ground.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace front passenger air bag 
off indicator unit.

4.

Replace diagnosis sensor unit 
(ACU).

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1026-B1031]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit. 

(ACU)

CRASH ZONE SEN
[UNIT FAIL]
[B1033] [B1034]

CRASH ZONE SEN
[COMM FAIL]
[B1035]

• Crash zone sensor is out of order.

1.

Visually check the wiring harness 
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace crash zone sensor.

4.

Replace diagnosis sensor unit 
(ACU).

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1042-B1047]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit. 

(ACU)

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

SRS-26

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

DRIVER AIR BAG 
MODULE
[OPEN]
[B1049] [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 visi-
ble damage.

3.

Replace driver air bag module. 

4.

Replace spiral cable.

5.

Replace diagnosis sensor unit 
(ACU).

DRIVER AIR BAG 
MODULE
[VB-SHORT]
[B1050] [B1055]

• Driver air bag module circuit is shorted to a power supply circuit 

(including the spiral cable).

DRIVER AIR BAG 
MODULE
[GND-SHORT]
[B1051] [B1056]

• Driver air bag module circuit is shorted to ground (including the 

spiral cable).

DRIVER AIR BAG 
MODULE
[SHORT]
[B1052] [B1057]

• Driver air bag module circuit is shorted between lines.

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1058-B1063]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit. 

(ACU)

ASSIST A/B MODULE
[OPEN]
[B1065] [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 diagnosis sensor unit 
(ACU).

ASSIST A/B MODULE
[VB-SHORT]
[B1066] [B1071]

• Front passenger air bag module circuit is shorted to a power sup-

ply circuit.

ASSIST A/B MODULE
[GND-SHORT]
[B1067] [B1072]

• Front passenger air bag module circuit is shorted to ground.

ASSIST A/B MODULE
[SHORT]
[B1068] [B1073]

• Front passenger air bag module circuit is shorted between lines.

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1074-B1079]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit. 

(ACU)

PRE-TEN FRONT RH
[OPEN]
[B1081]

• Front RH pre-tensioner circuit 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.

4.

Replace diagnosis sensor unit 
(ACU).

PRE-TEN FRONT RH
[VB-SHORT]
[B1082]

• Front RH pre-tensioner circuit is shorted to a power supply cir-

cuit.

PRE-TEN FRONT RH
[GND-SHORT]
[B1083]

• Front RH pre-tensioner circuit is shorted to ground.

PRE-TEN FRONT RH
[SHORT]
[B1084]

• Front RH pre-tensioner circuit is shorted between lines.

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS

SRS-27

< SERVICE INFORMATION >

C

D

E

F

G

I

J

K

L

M

A

B

SRS

N

O

P

PRE-TEN FRONT LH
[OPEN]
[B1086]

• Front LH pre-tensioner circuit is open. 

1.

Visually check the wiring harness 
connections.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace the front LH seat belt.

4.

Replace the diagnosis sensor 
unit.

5.

Replace the related harness.

PRE-TEN FRONT LH
[VB-SHORT]
[B1087]

• Front LH pre-tensioner circuit is shorted to a power supply cir-

cuit.

PRE-TEN FRONT LH
[GND-SHORT]
[B1088]

• Front LH pre-tensioner circuit is shorted to ground.

PRE-TEN FRONT LH
[SHORT]
[B1089]

• Front LH pre-tensioner circuit is shorted between lines.

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1106-B1111]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit 

(ACU).

SATELLITE SENS RH
[UNIT FAIL]
[B1113] [B1114]

SATELLITE SENS RH
[COMM FAIL]
[B1115]

• 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 RH side air bag (Satel-
lite) sensor.

4.

Replace diagnosis sensor unit 
(ACU).

SATELLITE SENS LH
[UNIT FAIL]
[B1118] [B1119]

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 LH side air bag (Satel-
lite) sensor.

4.

Replace diagnosis sensor unit 
(ACU).

DIAGNOSIS SENSOR 
UNIT (CONTROL UNIT)
[B1122-B1127]

• Diagnosis sensor is out of order.

• Replace diagnosis sensor unit 

(ACU).

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 side air bag 
module.

4.

Replace diagnosis sensor unit 
(ACU).

SIDE MODULE RH
[VB-SHORT]
[B1130]

• Front RH side air bag module circuit is shorted to a 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 circuit is shorted between lines.

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

 

 

 

 

 

 

 

Content   ..  939  940  941  942   ..