Nissan Altima HL32 Hybrid. Manual - part 1039

B1023 PASSENGER AIR BAG OFF INDICATOR

SRC-53

< COMPONENT DIAGNOSIS >

C

D

E

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A

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SRC

N

O

P

>> END

SRC-54

< COMPONENT DIAGNOSIS >

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

Description

INFOID:0000000004496014

DTC B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM (OCS)

The occupant classification system control unit is wired to the air bag diagnosis sensor unit.  The air bag diag-

nosis sensor unit will monitor the occupant classification system for control unit and sensor mat failures and

interuptions in communication between the OCS control unit and the air bag diagnosis sensor unit.

PART LOCATION

Refer to 

SRC-7, "SRS Component Parts Location"

.

DTC Logic

INFOID:0000000004496015

DTC DETECTION LOGIC 

With CONSULT-lll

Without CONSULT-lll

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check for the DTC on CONSULT-lll.
Is the DTC detected?

YES

>> Refer to 

SRC-55, "Diagnosis Procedure (Component Diagnosis)"

.

CONSULT-III name

DTC

DTC detecting condition

Repair order

OCCUPANT SENS C/U

[UNIT FAIL]

B1017 The OCS control unit is malfunctioning.

1.

Replace the RH front seat cushion assembly.  
Do not disassemble the seat cushion assem-
bly.

B1020

B1021

OCCUPANT SENS

[UNIT FAIL]

B1018

The OCS sensor mat is malfunctioning.

OCCUPANT SENS

[OTHER FAIL]

B1019

The OCS is malfunctioning.

OCCUPANT SENS C/U

[COMM FAIL]

B1022

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

1.

Visually check the wiring harness connection.

2.

Replace the harness if it has visible damage.

3.

Replace the RH front seat cushion assembly.  
Do not disassemble the seat cushion assem-
bly.

4.

Replace the air bag diagnosis sensor unit.

WHIA0211E

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

SRC-55

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

NO

>> Inspection End.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

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-70, "Trouble Diag-

nosis without CONSULT-III"

.

>> END

Diagnosis Procedure (Component Diagnosis)

INFOID:0000000004496016

Recheck SRS after each replacement.

1.

DTC

Does CONSULT-III indicate B1022?
YES or NO

YES

>> GO TO 2

NO

>> GO TO 4

2.

HARNESS CONNECTOR

Is there any visible damage to the connector?
YES or NO

YES

>> Replace the harness.

NO

>> GO TO 3

3.

WIRING HARNESS

Is there any visible damage to the harness?
YES or NO

YES

>> Replace the harness.

SRC-56

< COMPONENT DIAGNOSIS >

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

NO

>> GO TO 4

4.

RH FRONT SEAT CUSHION ASSEMBLY

Replace the RH front seat cushion assembly.  Refer to 

SE-21, "Removal and Installation"

.

>> GO TO 5

5.

AIR BAG DIAGNOSIS SENSOR UNIT

Replace the air bag diagnosis sensor unit.  Refer to 

SRS-16, "Removal and Installation"

.

>> END.