Nissan Xterra. Instruction — part 597

B1086 – B1089 SEAT BELT PRE-TENSIONER LH

SRC-31

< DTC/CIRCUIT DIAGNOSIS >

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B1086 – B1089 SEAT BELT PRE-TENSIONER LH

Description

INFOID:0000000009483008

DTC B1086 – B1089 SEAT BELT PRE-TENSIONER LH

The seat belt pre-tensioner LH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit

will monitor for opens and shorts in detected lines to the seat belt pre-tensioner LH.

PART LOCATION

Refer to

SRC-7, "SRS Component Parts Location"

.

DTC Logic

INFOID:0000000009483009

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-31, "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-31, "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-15, "Self-Diagnosis Function (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-31, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009483010

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

CONSULT name

DTC

DTC detecting condition

Repair order

PRE-TEN FRONT LH

[OPEN]

B1086

LH seat belt pre-tensioner circuit is open.

1.

Visually check the wiring harness connection.

2.

Replace the harness if it has visible damage.

3.

Replace the air bag diagnosis sensor unit.

4.

Replace the front LH seat belt pre-tensioner.

5.

Replace the related harness.

PRE-TEN FRONT LH

[VB-SHORT]

B1087

LH seat belt pre-tensioner circuit is shorted
to a power supply circuit.

PRE-TEN FRONT LH

[GND-SHORT]

B1088

LH seat belt pre-tensioner circuit is shorted
to ground.

PRE-TEN FRONT LH

[SHORT]

B1089

LH seat belt pre-tensioner circuits are
shorted to each other.

SRC-32

< DTC/CIRCUIT DIAGNOSIS >

B1086 – B1089 SEAT BELT PRE-TENSIONER LH

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis 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-40, "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-40, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

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

SR-23, "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.

SEAT BELT PRE-TENSIONER LH

1. Replace the seat belt pre-tensioner LH. Refer to

SR-22, "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

B1081 – B1084 SEAT BELT PRE-TENSIONER RH

SRC-33

< DTC/CIRCUIT DIAGNOSIS >

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B1081 – B1084 SEAT BELT PRE-TENSIONER RH

Description

INFOID:0000000009483011

DTC B1081 – B1084 SEAT BELT PRE-TENSIONER RH

The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit

will monitor for opens and shorts in detected lines to the seat belt pre-tensioner RH.

PART LOCATION

Refer to

SRC-7, "SRS Component Parts Location"

.

DTC Logic

INFOID:0000000009483012

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-33, "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-33, "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-15, "Self-Diagnosis Function (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-33, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009483013

1.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

CONSULT name

DTC

DTC detecting condition

Repair order

PRE-TEN FRONT RH

[OPEN]

B1081

RH seat belt pre-tensioner circuit is open.

1.

Visually check the wiring harness connection.

2.

Replace the harness if it has visible damage.

3.

Replace the air bag diagnosis sensor unit.

4.

Replace the front RH seat belt pre-tensioner.

5.

Replace the related harness.

PRE-TEN FRONT RH

[VB-SHORT]

B1082

RH seat belt pre-tensioner circuit is short-
ed to a power supply circuit.

PRE-TEN FRONT RH

[GND-SHORT]

B1083

RH seat belt pre-tensioner circuit is short-
ed to ground.

PRE-TEN FRONT RH

[SHORT]

B1084

RH seat belt pre-tensioner circuits are
shorted to each other.

SRC-34

< DTC/CIRCUIT DIAGNOSIS >

B1081 – B1084 SEAT BELT PRE-TENSIONER RH

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

NOTE:

All harness connectors should be inspected from the air bag diagnosis 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-40, "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-40, "Intermittent Incident"

.

5.

AIR BAG DIAGNOSIS SENSOR UNIT

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

SR-23, "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.

SEAT BELT PRE-TENSIONER RH

1. Replace the seat belt pre-tensioner RH. Refer to

SR-22, "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