Nissan Sentra. Manual - part 797

DIAGNOSIS SENSOR UNIT

SRC-23

< ECU DIAGNOSIS INFORMATION >

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Flash Code Index

INFOID:0000000009757940

WARNING LAMP FLASH CODE CHART

How to read flash codes

1. Put the vehicle in Diagnosis Mode. Refer to 

SRC-17, "Trouble Diagnosis without CONSULT"

.

2. All codes are proceded by a seven second ”holding” flash.
3. Identify how many primary flashes are displayed as well as the length of each primary flash.
4. Refer to the tables and examples below to determine which SRS subsystem the code belongs to.
5. Count the short secondary flashes that follow the primary flashes.
6. Match the correct flashing pattern to the malfunctioning component and perform the Diagnosis Procedure.

Refer to the illustrations below for an example of each flashing pattern.

B1433

FRONT PRE-TEN2 RH CIRCUIT 

[OPEN]

RH seat belt pre-tensioner circuit is open. 
(lap belt)

Refer to 

SRC-94, "Diag-

nosis Procedure"

.

FRONT PRE-TEN2 RH CIRCUIT 

[VB-SHORT]

RH seat belt pre-tensioner circuit is shorted 
to a power supply circuit. (lap belt)

FRONT PRE-TEN2 RH CIRCUIT 

[GND-SHORT]

RH seat belt pre-tensioner circuit is shorted 
to ground. (lap belt)

FRONT PRE-TEN2 RH CIRCUIT 

[SHORT]

RH seat belt pre-tensioner circuits are short-
ed to each other. (lap belt)

B142A

IGN VOLTAGE

[LOW]

Ignition voltage to the air bag diagnosis sen-
sor unit is low.

Refer to 

SRC-96, "Diag-

nosis Procedure"

.

IGN VOLTAGE

[HIGH]

Ignition voltage to the air bag diagnosis sen-
sor unit is high.

B14XX

CONTROL UNIT

[UNIT FAIL]

Air bag diagnosis sensor unit is malfunction-
ing.

Refer to 

SRC-99, "Diag-

nosis Procedure"

.

B00A0

OCCUPANT DETECTION SENSOR UNIT

[UNIT FAIL]

The OCS control unit is malfunctioning.

Refer to 

SRC-102, "Di-

agnosis Procedure"

.

OCCUPANT DETECTION SENSOR UNIT

[NO DATA]

OCCUPANT DETECTION SENSOR UNIT

[UNDEFINED]

OCCUPANT DETECTION SENSOR UNIT

[RESET FAIL]

OCCUPANT DETECTION SENSOR UNIT

[COMM FAIL]

Communication between the OCS control 
unit and the air bag diagnosis sensor unit is 
interrupted.

OCCUPANT DETECTION SENSOR

[UNIT FAIL]

The OCS sensor is malfunctioning.

OCCUPANT DETECTION SENSOR

[POWER FAIL]

The OCS sensor circuit is malfunctioning.

B00D5

PASSENGER AIRBAG INDICATOR CIRCUIT

[FAIL]

Front passenger air bag OFF indicator is 
malfunctioning.

Refer to 

SRC-105, "Di-

agnosis Procedure"

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PASSENGER AIRBAG INDICATOR CIRCUIT

[OPEN]

Front passenger air bag OFF indicator cir-
cuit is open.

PASSENGER AIRBAG INDICATOR CIRCUIT

[VB-SHORT]

Front passenger air bag OFF indicator is 
shorted to a power supply circuit.

PASSENGER AIRBAG INDICATOR CIRCUIT

[GND-SHORT]

Front passenger air bag OFF indicator is 
shorted to ground.

DTC

CONSULT name

DTC detecting condition

Repair order

SRC-24

< ECU DIAGNOSIS INFORMATION >

DIAGNOSIS SENSOR UNIT

Front subsystem

Side subsystem

Air bag subsystem

AWHIA0430GB

Flashes

(Primary)

Flash Length

(seconds)

Flashes

(Secondary)

Malfunctioning Component or Circuit

Reference

2

1.5

1

Driver air bag module

SRC-46, "Diagnosis Proce-

dure"

2

Passenger air bag module

SRC-49, "Diagnosis Proce-

dure"

3

Front LH seat belt pre-tensioner (shoulder)

SRC-91, "Diagnosis Proce-

dure"

4

Front RH seat belt pre-tensioner (shoulder)

SRC-94, "Diagnosis Proce-

dure"

5

Front LH seat belt pre-tensioner (lap)

SRC-91, "Diagnosis Proce-

dure"

6

Front RH seat belt pre-tensioner (lap)

SRC-94, "Diagnosis Proce-

dure"

AWHIA0431GB

Flashes

(Primary)

Flash Length

(seconds)

Flashes

(Secondary)

Malfunctioning Component or Cir-

cuit

Reference

3

1.5

1

Front LH side air bag module

SRC-51, "Diagnosis Procedure"

2

Front RH side air bag module

SRC-57, "Diagnosis Procedure"

3

LH side curtain air bag module

SRC-54, "Diagnosis Procedure"

4

RH side curtain air bag module

SRC-60, "Diagnosis Procedure"

DIAGNOSIS SENSOR UNIT

SRC-25

< ECU DIAGNOSIS INFORMATION >

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Sensor subsystem

AWHIA0432GB

Flashes

(Primary)

Flash Length

(seconds)

Flashes

(Secondary)

Malfunctioning Component or Circuit

Reference

1

3

1

Collision detection

SRC-98, "Diagnosis Proce-

dure"

2

Air bag diagnosis sensor unit

SRC-99, "Diagnosis Proce-

dure"

3

Passenger air bag OFF indicator

SRC-105, "Diagnosis Proce-

dure"

4

Occupant classification system

SRC-102, "Diagnosis Proce-

dure"

AWHIA0433GB

Flashes

(Primary)

Flash Length

(seconds)

Flashes

(Secondary)

Malfunctioning Component or Circuit

Reference

2

3

1

Crash zone sensor

SRC-73, "Diagnosis Proce-

dure"

2

Front side air bag satellite sensor LH

SRC-64, "Diagnosis Proce-

dure"

3

Front side air bag satellite sensor RH

SRC-76, "Diagnosis Proce-

dure"

4

Rear side air bag satellite sensor LH

SRC-67, "Diagnosis Proce-

dure"

5

Rear side air bag satellite sensor RH

SRC-79, "Diagnosis Proce-

dure"

6

Front door satellite sensor LH

SRC-70, "Diagnosis Proce-

dure"

7

Front door satellite sensor RH

SRC-82, "Diagnosis Proce-

dure"

8

Seat belt buckle switch LH

SRC-84, "Diagnosis Proce-

dure"

9

Seat belt buckle switch RH

SRC-87, "Diagnosis Proce-

dure"

SRC-26

< WIRING DIAGRAM >

SRS AIR BAG SYSTEM

WIRING DIAGRAM

SRS AIR BAG SYSTEM

Wiring Diagram

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ABHWA0287GB