Nissan Maxima. Manual - part 1105

SRC-48

< DTC/CIRCUIT DIAGNOSIS >

B1023 PASSENGER AIR BAG OFF INDICATOR

B1023 PASSENGER AIR BAG OFF INDICATOR

Description

INFOID:0000000009466528

DTC B1023 FRONT PASSENGER AIR BAG OFF INDICATOR

The front passenger air bag off indicator is wired to the air bag diagnosis sensor unit. The air bag diagnosis

sensor unit monitors the front passenger air bag off indicator and circuit for failures.

PART LOCATION

Refer to 

SRC-7, "SRS Component Parts Location"

.

DTC Logic

INFOID:0000000009466529

DTC DETECTION LOGIC 

With CONSULT

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check for DTC using CONSULT.
Is the DTC detected?

YES (Current DTC)>>Refer to 

SRC-48, "Diagnosis Procedure"

.

YES (Past DTC)>>GO TO 2.

NO

>> Inspection End.

2.

ERASE SELF-DIAG RESULT

Erase the DTC using CONSULT.
Can the DTC be erased?

YES

>> Inspection End.

NO

>> Refer to 

SRC-48, "Diagnosis Procedure"

.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check the air bag warning lamp status. Refer to 

SRC-14, "Trouble Diagnosis without CONSULT"

.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?

YES

>> Refer to 

SRC-48, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009466530

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

CONSULT name

DTC

DTC detecting condition

Repair order

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 the front passenger air bag off indi-
cator.

4.

Replace the air bag diagnosis sensor unit.

5.

Replace the related harness.

B1023 PASSENGER AIR BAG OFF INDICATOR

SRC-49

< DTC/CIRCUIT DIAGNOSIS >

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• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

2.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 3.

NO

>> Refer to 

GI-41, "Intermittent Incident"

.

3.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the harness.

4.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 5.

NO

>> Refer to 

GI-41, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace the air bag diagnosis sensor unit. Refer to 

SR-31, "Removal and Installation"

.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 6.

NO

>> Clear DTC. Inspection End.

6.

PASSENGER AIR BAG OFF INDICATOR

1. Replace the passenger air bag off indicator. Refer to 

IP-11, "Removal and Installation"

.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 7.

NO

>> Clear DTC. Inspection End.

7.

RELATED HARNESS

Replace the related harness.

>> END

SRC-50

< DTC/CIRCUIT DIAGNOSIS >

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

Description

INFOID:0000000009466531

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

interruptions 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:0000000009466532

DTC DETECTION LOGIC 

With CONSULT

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check for DTC using CONSULT.
Is the DTC detected?

YES (Current DTC)>>Refer to 

SRC-51, "Diagnosis Procedure"

.

YES (Past DTC)>>GO TO 2.

NO

>> Inspection End.

2.

ERASE SELF-DIAG RESULT

Erase the DTC using CONSULT.
Can the DTC be erased?

YES

>> Inspection End.

NO

>> Refer to 

SRC-51, "Diagnosis Procedure"

.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

1.

CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.

2. Check the air bag warning lamp status. Refer to 

SRC-14, "Trouble Diagnosis without CONSULT"

.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?

CONSULT 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.

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM

SRC-51

< DTC/CIRCUIT DIAGNOSIS >

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YES

>> Refer to 

SRC-51, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009466533

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

2.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 3.

NO

>> Refer to 

GI-41, "Intermittent Incident"

.

3.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component

(including any in-line connectors).
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the harness.

4.

CONFIRM DTC

1. Reconnect all harness connectors.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 5.

NO

>> Refer to 

GI-41, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace the air bag diagnosis sensor unit. Refer to 

SR-31, "Removal and Installation"

.

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.
Is DTC still current?

YES

>> GO TO 6.

NO

>> Clear DTC. Inspection End.

6.

RH FRONT SEAT CUSHION ASSEMBLY

1. Replace the RH front seat cushion assembly. Refer to 

SE-68, "Removal and Installation"

 (with climate

controlled seats) or 

SE-126, "Removal and Installation"

 (without climate controlled seats).

2. Turn ignition switch ON.

3. Check for DTC using CONSULT.