Nissan Titan. Manual - part 544

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FRONT SEAT BELT PRE-TENSIONER

FRONT SEAT BELT PRE-TENSIONER

Removal and Installation

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For removal and installation procedures for front seat belt pre-tensioners, refer to 

SB-4, "Removal and Instal-

lation of Front Seat Belt"

. 

DIAGNOSIS SENSOR UNIT

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DIAGNOSIS SENSOR UNIT

Removal and Installation

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REMOVAL

CAUTION:

• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at

least three minutes.

• Do not use old bolts; replace with new bolts.

• Check diagnosis sensor unit bracket to make sure it is free of deformities, dents, cracks or rust. If it

shows any visible signs of damage, replace with new one.

• Replace diagnosis sensor unit if it has been dropped or sustained an impact.

• Never use air tools or electric tools for servicing.

• When replacing the air bag diagnosis sensor unit, always check with the parts department for he lat-

est parts information. Installing an incorrect air bag diagnosis sensor unit may or may not cause the

air bag warning lamp to illuminate and may cause incorrect deployment of the supplemental air bags

and seat belt pre-tensioner in a collision resulting in serious personal injury or death.

1. Always check the air bag diagnosis sensor unit ECU discriminated number (identification number) or part

number using CONSULT.

2. Disconnect the negative and positive battery terminals, then wait at least three minutes. Refer to 

PG-80,

"Removal and Installation"

.

3. Disconnect the harness connectors for the following SRS components: 

SR-11, "Removal and Installation"

(Side curtain air bag module), 

SE-48, "Disassembly and Assembly"

 (Side air bag module), 

SB-4,

"Removal and Installation of Front Seat Belt"

 (Seat belt pre-tensioner).

4. Remove center console. Refer to 

IP-20, "Removal and Installation"

.

5. Disconnect diagnosis sensor unit harness connectors.
6. Remove bolts from the diagnosis sensor unit.

CAUTION:

• Do not use old bolts; replace with new bolts.

• Check diagnosis sensor unit bracket to ensure it is free of deformities, dents, cracks or rust. If it

shows any visible signs of damage, replace with new one.

• Replace diagnosis sensor unit if it has been dropped or sustained an impact.

INSTALLATION

Installation is in the reverse order of removal.

• Always follow the tightening sequence shown.

AWHIA0159ZZ

1.

Diagnosis sensor unit

Vehicle front

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< REMOVAL AND INSTALLATION >

DIAGNOSIS SENSOR UNIT

• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to 

SRC-

13, "SRS Operation Check"

.

CAUTION:

• The diagnosis sensor unit must always be installed with the arrow mark "

⇐" pointing toward the

front of the vehicle for proper operation.

• When installing diagnosis sensor unit bolt, use proper tightening sequence.

• Never damage the harness while installing.

• If malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction-

ing parts, reset the memory using self-diagnosis or CONSULT. Refer to 

SRC-15, "Self-Diagnosis

Function (Without CONSULT)"

.

• After the work is completed, check that no system malfunction is detected by air bag warning lamp.

• After replacing the air bag diagnosis sensor unit, confirm using CONSULT that the ECU discrimi-

nated number (identification number) or part number of the new replacement air bag diagnosis sen-

sor unit matches the ECU discriminated number (identification number) or part number of the

replaced (old) air bag diagnosis sensor unit.

NOTE:

If the ECU discriminated number or part number of the new replacement air bag diagnosis sensor unit differs

from the ECU discriminated number or part number of the replaced air bag diagnosis sensor unit, reconfirm

the parts information and verify that the correct air bag diagnosis sensor unit was installed.

OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

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OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

Removal and Installation

INFOID:0000000009882853

The occupant classification system control unit, occupant classification (pressure) sensor, and bladder are an

integral part of the front passenger seat cushion and are replaced as an assembly. Refer to 

SE-34, "Removal

and Installation - Front Seat Assembly"

 to remove the seat, and 

SE-48, "Disassembly and Assembly"

 to

replace the seat cushion.